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Journal articles on the topic 'Chitosan. Mercury'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

Campos, Karol, Eric Guibal, Francisco Peirano, M. Ly, and Holger Maldonado. "Mercury Sorption on Chitosan." Advanced Materials Research 20-21 (July 2007): 635–38. http://dx.doi.org/10.4028/www.scientific.net/amr.20-21.635.

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Mercury sorption on chitosan was investigated in batch and continuous systems. Chitosan sorption properties were determined through sorption isotherms. Langmuir and Freundlich equations were used for the modeling of isotherms at pH 5. In batch systems, maximum sorption capacities reached 550 mg Hg/g. Sorption kinetics have been studied as a function of sorbent particle size and stirring rate. Dynamic removal of mercury was tested in a fixed bed reactor investigating the following parameters: particle size, column size, flow velocity and metal ion concentration. Clark and Adams-Bohart models we

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2

Li, N., and R. Bai. "Development of chitosan-based granular adsorbents for enhanced and selective adsorption performance in heavy metal removal." Water Science and Technology 54, no. 10 (2006): 103–13. http://dx.doi.org/10.2166/wst.2006.736.

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Novel chitosan-based granular adsorbents were developed for enhanced and selective separation of heavy metal ions. The research included the synthesis of chitosan hydrogel beads, the cross-linking of the hydrogel beads with ethylene glycol diglycidyl ether (EGDE) in a conventional and a novel amine-shielded method, the functionalization of the chitosan beads through surface grafting of polyacrylamide via a surface-initiated atom transfer radical polymerization (ATRP) method, and the examination of the adsorption performance of the various types of chitosan beads in the removal of heavy metal i

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3

Bharita, Wahyu Giatri, Dewi Yunita, and Anshar Patria. "Kitosan dari Kulit Udang sebagai Pendeteksi Borak pada Mie Basah, Formalin pada Tahu dan Merkuri pada Ikan Segar." Jurnal Ilmiah Mahasiswa Pertanian 4, no. 1 (2019): 547–57. http://dx.doi.org/10.17969/jimfp.v4i1.6440.

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Abstrak: Kitosan adalah turunan dari kitin yang merupakan komponen penyusun dari kulit udang. Kitosan berfungai untuk mendeteksi bahan kimia berbahaya seperti boraks, formalin dan merkuri, didasari oleh kemampuan kitosan sebagai absorben. Ekstraksi kitosan dari kulit udang dilakukan secara kimiawi dengan melibatkan beberapa proses yaitu deproteinisasi, demineralisasi, depigmentasi dan deasetilasi. Tujuan dari penelitian ini yaitu untuk mengetahuan pengaruh perbedaan jumlah kitosan (0,2 g, 0,4 g dan 0,6 g) dan perbedaan bahan kimia (boraks, formalin dan merkuri) terhadap perubahan fisik dari mi

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4

Yang, Yong Li, Sheng Guang Zhao, Chun Guang Song, and Ming Gao. "The Adsorption of Chitosan-Aluminum Oxide Composite Material to Mercury Ions." Advanced Materials Research 1015 (August 2014): 647–50. http://dx.doi.org/10.4028/www.scientific.net/amr.1015.647.

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Chitosan-aluminum oxide composite material was synthesized through chemical bonds with chitosan and isopropanol aluminum as raw material, whose structure was characterized by SEM. The influence of reaction conditions on adsorption performance were studied, such as temperature, time. Results show that in the composite materials, chemical bonds were existed between aluminum and chitosan, inorganic aluminum oxide evenly dispersed in the surface of chitosan molecular. The adsorption capacity of such composite towards Hg2+ had been greatly improved better than the mixture of chitosan and Al2O3 mate

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5

Xia, Zhuo Ying, Kun He Lan, Hao Wei Hu, and Cong Qun Wu. "Research on Preparation and Properties of Alkylation Modified Chitosan Supported Cuprous Oxide." Advanced Materials Research 838-841 (November 2013): 2318–21. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.2318.

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Using chitosan as raw material,the modified chitosan was obtained through alkylation reaction with alkyl halide, which as a carrier, Cu2O/ modified chitosan composite photocatalyst was prepared by hydrazine hydrate reduction.Using the method of X-ray diffraction and scanning electron microscope analysis, characterization of the composite photocatalyst show: Cu2O loads evenly on the modified chitosan, and the structure of Cu2O changes little, grain size of Cu2O is about 200nm~300nm.Using UV mercury lamp as the light source, alizarin red as target degradation product, photocatalytic performance

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6

Darmadi, Darmadi, Irfan M, Iqhramullah M, Marlina Marlina, and Mirna Rahmah Lubis. "SYHNTHESIS OF CHITOSAN MODIFIED POLYURETHANE FOAM FOR ADSOPRTION OF MERCURY (II) IONS." Jurnal Bahan Alam Terbarukan 7, no. 1 (2018): 18–27. http://dx.doi.org/10.15294/jbat.v7i1.13614.

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Mercury from the traditional gold mining activities in Aceh Jaya Regency causes water source and thus residents are exposed to mercury metals. In organic and inorganic conditions, mercury is toxic to the human body, causes damage to the nerve system, kidney failure, heart failure, blood pressure disorders, and damage to the immune system. The problem of mercury contamination can be chemically solved in various ways. This research uses polyurethane foam to adsorb mercury from water. The adsorption and selectivity of polyurethane foam adsorption can be improved through modification with Chitosan

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7

Bhatt, Rahul, Shilpi Kushwaha, Sreedhar Bojja, and P. Padmaja. "Chitosan–Thiobarbituric Acid: A Superadsorbent for Mercury." ACS Omega 3, no. 10 (2018): 13183–94. http://dx.doi.org/10.1021/acsomega.8b01837.

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8

Paleček, Emil, and Ludmila Římánková. "Chitosan catalyzes hydrogen evolution at mercury electrodes." Electrochemistry Communications 44 (July 2014): 59–62. http://dx.doi.org/10.1016/j.elecom.2014.04.015.

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9

Kushwaha, S., B. Sreedhar, and P. Padmaja. "Sorption of Phenyl Mercury, Methyl Mercury, and Inorganic Mercury onto Chitosan and Barbital Immobilized Chitosan: Spectroscopic, Potentiometric, Kinetic, Equilibrium, and Selective Desorption Studies." Journal of Chemical & Engineering Data 55, no. 11 (2010): 4691–98. http://dx.doi.org/10.1021/je100317t.

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10

Sharma, Reena, Nahar Singh, Sangeeta Tiwari, Sandeep K. Tiwari, and Sanjay R. Dhakate. "Cerium functionalized PVA–chitosan composite nanofibers for effective remediation of ultra-low concentrations of Hg(ii) in water." RSC Advances 5, no. 22 (2015): 16622–30. http://dx.doi.org/10.1039/c4ra15085f.

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11

Adlim, Muhammad, Fitri Zarlaida, Ibnu Khaldun, Rizka Dewi, Sofyatuddin Karina, and Ahmad Fairuz Omar. "Immobilization of Sulfur from Different Precursors on Mini Rice-Husk-Ash Pellet Coated Chitosan Film and the Application for Mercury Vapor Uptake." Indonesian Journal of Chemistry 19, no. 2 (2019): 386. http://dx.doi.org/10.22146/ijc.34552.

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Stabilizing elemental mercury using elemental sulfur has been a laboratory standard method but the studies in gas system are still growing. This study aims to explore the effect of different type immobilized sulfurs toward the mercury vapor uptake in a mini gas reactor. Sulfur powder, sulfur dissolved in carbon disulfide and colloidal sulfur from sodium thiosulfate-hydrochloric acid were immobilized on mini rice-husk-ash pellets that were previously coated with chitosan film. The average thinness of chitosan film was 58 µm covered the each pellet surface with dimension of 3 mm Ø x 4 mm. The tr

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12

Kyzas, George, and Eleni Deliyanni. "Mercury(II) Removal with Modified Magnetic Chitosan Adsorbents." Molecules 18, no. 6 (2013): 6193–214. http://dx.doi.org/10.3390/molecules18066193.

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13

Gavilan, K. Campos, A. V. Pestov, H. Maldonado Garcia, Y. Yatluk, Jean Roussy, and E. Guibal. "Mercury sorption on a thiocarbamoyl derivative of chitosan." Journal of Hazardous Materials 165, no. 1-3 (2009): 415–26. http://dx.doi.org/10.1016/j.jhazmat.2008.10.005.

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14

Bao, Qiwen, Gang Li, Zhengchun Yang, et al. "In situ detection of heavy metal ions in sewage with screen-printed electrode-based portable electrochemical sensors." Analyst 146, no. 18 (2021): 5610–18. http://dx.doi.org/10.1039/d1an01012c.

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A portable electrochemical sensor equipped with a screen-printed chitosan/PANi–Bi nanoparticle@graphene oxide multi-walled carbon nanotube electrode for mercury and copper ion detection in aqueous solutions.

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15

Hu, Lei, Baohui Zhu, Li Zhang, Hua Yuan, Qi Zhao, and Zhengquan Yan. "Chitosan–gold nanocomposite and its functionalized paper strips for reversible visual sensing and removal of trace Hg2+ in practice." Analyst 144, no. 2 (2019): 474–80. http://dx.doi.org/10.1039/c8an01707g.

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To eliminate mercury contamination in aqueous environment, chitosan–gold nanocomposite and its functionalized paper strips were designed and developed for visual sensing and removal of trace Hg<sup>2+</sup>.

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16

Rabelo, R. B., R. S. Vieira, F. M. T. Luna, E. Guibal, and M. M. Beppu. "Adsorption of Copper(II) and Mercury(II) Ions onto Chemically-Modified Chitosan Membranes: Equilibrium and Kinetic Properties." Adsorption Science & Technology 30, no. 1 (2012): 1–21. http://dx.doi.org/10.1260/0263-6174.30.1.1.

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Cross-linked chitosan was synthesized with glutaraldehyde (chitosan–GLA) and epichlorohydrin (chitosan–ECH). The structures of these matrices were characterized by elemental analysis, Fourier-transform infrared spectrometry (FT-IR), the degree of de-acetylation and the surface topography as determined via scanning electron microscopy (SEM). After promoting interaction with the metal ion, the adsorbent was also studied using FT-IR and energy dispersive X-ray spectroscopy (EDXS). Adsorption studies for Cu(II) and Hg(II) ions were carried out in a batch process. The adsorption kinetics were teste

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17

Chen, Zhenlin, Kunlin Han, and Ya-Nan Zhang. "Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection." Applied Sciences 9, no. 7 (2019): 1480. http://dx.doi.org/10.3390/app9071480.

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This paper proposes a reflective fiber mercury ion sensor based on the surface plasmon resonance (SPR) principle and chitosan (CS)/polyacrylic acid (PAA) multilayer sensitive film. By optimizing the coating parameters of the gold film, the refractive index (RI) sensitivity of the reflective SPR sensor is demonstrated to be 2110.33 nm/RIU. Then, a multi-layer CS/PAA film is fixed on the surface of the gold film as a mercury ion sensitive film to form a reflective SPR fiber mercury ion sensor. Experimental results demonstrate that the sensor can be used to detect different concentrations of merc

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18

KIDOKORO, Tadahiko, Yoshimi NAKAJIMA, Nobuko SKIMOSU, and Masako IWATA. "Ion Flotation of Mercury (II) Ion Using Chitosan Derivative." Journal of Japan Oil Chemists' Society 48, no. 3 (1999): 221–25. http://dx.doi.org/10.5650/jos1996.48.221.

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19

Bessa, Ana, Gil Gonçalves, Bruno Henriques, Eddy M. Domingues, Eduarda Pereira, and Paula A. A. P. Marques. "Green Graphene–Chitosan Sorbent Materials for Mercury Water Remediation." Nanomaterials 10, no. 8 (2020): 1474. http://dx.doi.org/10.3390/nano10081474.

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The development of new graphene-based nanocomposites able to provide synergistic effects for the adsorption of toxic heavy metals in realistic conditions (environment) is of higher demand for future applications. This work explores the preparation of a green nanocomposite based on the self-assembly of graphene oxide (GO) with chitosan (CH) for the remediation of Hg(II) in different water matrices, including ultrapure and natural waters (tap water, river water, and seawater). Starting at a concentration of 50 μg L–1, the results showed that GO–CH nanocomposite has an excellent adsorption capaci

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20

Merrifield, John D., William G. Davids, Jean D. MacRae, and Aria Amirbahman. "Uptake of mercury by thiol-grafted chitosan gel beads." Water Research 38, no. 13 (2004): 3132–38. http://dx.doi.org/10.1016/j.watres.2004.04.008.

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21

Vieira, Rodrigo S., and Marisa M. Beppu. "Mercury Ion Recovery Using Natural and Crosslinked Chitosan Membranes." Adsorption 11, S1 (2005): 731–36. http://dx.doi.org/10.1007/s10450-005-6015-3.

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22

Kushwaha, Shilpi, and Padmaja P. Sudhakar. "Adsorption of mercury(II), methyl mercury(II) and phenyl mercury(II) on chitosan cross-linked with a barbital derivative." Carbohydrate Polymers 86, no. 2 (2011): 1055–62. http://dx.doi.org/10.1016/j.carbpol.2011.06.028.

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23

KAWAMURA, Yoshihide. "Fabrication of Highly Porous Chitosan Beads and Adsorption of Mercury(II) on Polyaminated Chitosan Beads." Journal of Ion Exchange 9, no. 4 (1998): 183–91. http://dx.doi.org/10.5182/jaie.9.183.

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24

Hammad, Hoda G. H., and Miral Nagy F. Salama. "Porosity Pattern of 3D Chitosan/Bioactive Glass Tissue Engineering Scaffolds Prepared for Bone Regeneration." Open Dentistry Journal 15, no. 1 (2021): 41–56. http://dx.doi.org/10.2174/1874210602115010041.

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Aim: The study was conducted to investigate the obtained external and internal porosity and the pore-interconnectivity of specific fabricated bioactive composite tissue engineering scaffolds for bone regeneration in dental applications. Materials and Methods: In this study, the bioactive glass [M] was elaborated as a quaternary system to be incorporated into the chitosan [C] scaffold preparation on a magnetic stirrer to provide bioactivity and better strength properties for the attempted composite scaffolds [C/ M] of variable compositions. The homogenous chitosan/bioactive glass mix was poured

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25

Geng, Zhigang, Haimin Zhang, Qizhong Xiong, Yunxia Zhang, Huijun Zhao, and Guozhong Wang. "A fluorescent chitosan hydrogel detection platform for the sensitive and selective determination of trace mercury(ii) in water." Journal of Materials Chemistry A 3, no. 38 (2015): 19455–60. http://dx.doi.org/10.1039/c5ta05610a.

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A fluorescent chitosan hydrogel detection platform was developed by cross-linking chitosan fibers with glutaric dialdehyde (GD) fluorophores, exhibiting superior performance for the sensitive and selective determination of trace Hg<sup>2+</sup> in water.

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26

Michailidou, Georgia, Ioanna Koumentakou, Efstathios V. Liakos, et al. "Adsorption of Uranium, Mercury, and Rare Earth Elements from Aqueous Solutions onto Magnetic Chitosan Adsorbents: A Review." Polymers 13, no. 18 (2021): 3137. http://dx.doi.org/10.3390/polym13183137.

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The compound of chitin is the second most important and abundant natural biopolymer in the world. The main extraction and exploitation sources of this natural polysaccharide polymer are mainly crustaceans species, such as shrimps and crabs. Chitosan (CS) (poly-β-(1 → 4)-2-amino-2-deoxy-d-glucose) can be derived from chitin and can be mentioned as a compound that has high value-added applications due to its wide variety of uses, including pharmaceutical, biomedical, and cosmetics applications, food etc. Furthermore, chitosan is a biopolymer that can be used for adsorption applications because i

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27

Jana, Somen, M. K. Purkait, and Kaustubha Mohanty. "Polymer enhanced ultrafiltration of mercury using chitosan impregnated ceramic membrane." Desalination and Water Treatment 37, no. 1-3 (2012): 321–30. http://dx.doi.org/10.1080/19443994.2012.661574.

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28

Bhatt, Rahul, and Padmaj P. "A chitosan-thiomer polymer for highly efficacious adsorption of mercury." Carbohydrate Polymers 207 (March 2019): 663–74. http://dx.doi.org/10.1016/j.carbpol.2018.12.018.

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29

Gong, Yang, Yingchun Yu, Huixuan Kang, et al. "Synthesis and Characterization of Graphene Oxide/Chitosan Composite Aerogels with High Mechanical Performance." Polymers 11, no. 5 (2019): 777. http://dx.doi.org/10.3390/polym11050777.

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Chitosan, a semi-crystalline biomolecule, has attracted wide attention due to its high synthesis flexibility. In this study, to improve the mechanical properties of chitosan aerogels (CSAs), graphene oxide (GO) was extracted and introduced into chitosan aerogels as fillers. The porous CSAs/GO composite aerogels were fabricated by an environmentally friendly freeze-drying process with different GO contents (0, 0.5, 1.0, 1.5, wt.%). The characteristics of the CSAs/GO were investigated by scanning electron microscopy (SEM), mechanical measurements and mercury porosimeter. The crystallinity of sam

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30

BABA, Yoshinari, Naohiko MATSUMURA, Kohichiro SHIOMORI, and Yoshinobu KAWANO. "Selective Adsorption of Mercury(II) on Chitosan Derivatives from Hydrochloric Acid." Analytical Sciences 14, no. 4 (1998): 687–90. http://dx.doi.org/10.2116/analsci.14.687.

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31

Jeon, Choong, and Wolfgang H. Höll. "Chemical modification of chitosan and equilibrium study for mercury ion removal." Water Research 37, no. 19 (2003): 4770–80. http://dx.doi.org/10.1016/s0043-1354(03)00431-7.

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32

Rassaei, Liza, Mika Sillanpää, Karen J Edler, and Frank Marken. "Electrochemically Active Mercury Nanodroplets Trapped in a Carbon Nanoparticle-Chitosan Matrix." Electroanalysis 21, no. 3-5 (2009): 261–66. http://dx.doi.org/10.1002/elan.200804301.

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33

Minu, M., Neenu Kumar, and J. Shilpa. "Role of Gymnemic Acid-Chitosan Nanoparticles in Mercury Removal from Water." Journal of Chitin and Chitosan Science 3, no. 1 (2015): 68–76. http://dx.doi.org/10.1166/jcc.2015.1092.

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34

Hikima, Satoshi, Teiji Kakizaki, Mitsuhiko Taga, and Kiyoshi Hasebe. "Enzyme sensor for L-lactate with a chitosan-mercury film electrode." Fresenius' Journal of Analytical Chemistry 345, no. 8-9 (1993): 607–9. http://dx.doi.org/10.1007/bf00325809.

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35

Rahmi, Fathurrahmi, Lelifajri, and Fitri PurnamaWati. "Preparation of magnetic chitosan using local iron sand for mercury removal." Heliyon 5, no. 5 (2019): e01731. http://dx.doi.org/10.1016/j.heliyon.2019.e01731.

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36

Lelifajri, Rahmi, and A. S. W. Ayu. "Magnetic Sulfonated Chitosan composite beads for Mercury removal from Aqueous solutions." Journal of Physics: Conference Series 1882, no. 1 (2021): 012104. http://dx.doi.org/10.1088/1742-6596/1882/1/012104.

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37

Allouche, Fella-Naouel. "A user-friendly Ulva lactuca/chitosan composite bead for mercury removal." Inorganic Chemistry Communications 130 (August 2021): 108747. http://dx.doi.org/10.1016/j.inoche.2021.108747.

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38

Habibie, Sudirman. "Chelation and Metal-Ion Complex Formation of Chitosan Treated Cotton." Majalah Ilmiah Pengkajian Industri 8, no. 3 (2019): 93–100. http://dx.doi.org/10.29122/mipi.v8i3.3652.

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Chitin dan chitosan adalah bahan â€œchelateâ€ yang sangat kuat untuk ion transisi logam terutama tembaga, nikel dan merkuri, dan sifat-sifat ini yang akan intensif di bahas. Pada studi ini kain kapas (cotton) dikerjakan dengan larutan chitosan-asam polikarboksilat untuk memperoleh kain kapas-chitosan yang mengandung gugus group karboksilat (-COOH) dan gugus amina (-NH2) fungsional. Penggunaan asam polykarboksilat (asam sitrat dan maleik) pada pelarutan chitosan menghasilkan group karboksil 0,5 meqs/g pada kain yang dicelup dengan larutan chitosan asam karboksilat. Kemudian kain kapas yang tel

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39

Adamczuk, Agnieszka, Weronika Sofinska-Chmiel, and Grzegorz Jozefaciuk. "Arsenate Adsorption on Fly Ash, Chitosan and Their Composites and Its Relations with Surface, Charge and Pore Properties of the Sorbents." Materials 13, no. 23 (2020): 5381. http://dx.doi.org/10.3390/ma13235381.

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One of the ways to recycle millions of tons of fly ash and chitin wastes produced yearly is their utilization as low-cost sorbents, mainly for heavy metal cations and organic substances. To improve their sorption efficiency, fly ashes have been thermally activated or modified by chitosan. We aimed to deeply characterize the physicochemical properties of such sorbents to reveal the usefulness of modification procedures and their effect on As(V) adsorption. Using low temperature nitrogen adsorption, scanning electron microscopy, mercury intrusion porosimetry, potentiometric titration and adsorpt

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40

Syauqiah, Isna, Umi Baroroh Lili Utami, and Meina Wulansari Yusniar. "THE EFFECT OF MASS OF COAL FLY ASH-CHITOSAN COMPOSITE PELLETS MODIFIED WITH GLUTARALDEHYDE ON THE ADSORPTION OF MERCURY IN SOLUTION." TROPICAL WETLAND JOURNAL 3, no. 1 (2017): 17–19. http://dx.doi.org/10.20527/twj.v3i1.41.

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Fly ash can be used and utilized as an adsorbent because it is cheap and effective to adsorb waste in the aquatic environment. Hg also known as Mercury is a carciogenic heavy metal and potentially threatens human health at very low concentrations. In this study, fly ash was applied as the adsorbent for Hg2+ in the form of chitosan-fly ash composite pellet and was cross-linked with glutaraldehyde in order to know how much the mass of pellets that can be used to lower the concentration of Hg2+ in solution. The results showed that the fly ash can be compositated with chitosan gel after going thro

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41

Hardiantho, Willy, Bidayatul Arminah, and Arifin Arifin. "Detection of Mercury Ions in Water using a Plastic Optical Fiber Sensor." Indonesian Physical Review 4, no. 2 (2021): 95. http://dx.doi.org/10.29303/ipr.v4i2.82.

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Research has been carried out on the detection of mercury ions in water using plastic optical fibers. Detection of mercury ions is done by immersing the optical fiber sensor in the HgCl2 solution, where both ends of the sensor are connected to an LED and a phototransistor. LED as a light source will emit light along with the optical fiber which will be received by the phototransistor. The optical light received by the phototransistor is converted into an electric voltage and given a gain in the differential amplifier. The output voltage in the form of an analog signal is converted into a digit

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42

Liakos, Efstathios V., Mariza Mone, Dimitra A. Lambropoulou, Dimitrios N. Bikiaris, and George Z. Kyzas. "Adsorption Evaluation for the Removal of Nickel, Mercury, and Barium Ions From Single-Component and Mixtures of Aqueous Solutions by Using an Optimized Biobased Chitosan Derivative." Polymers 13, no. 2 (2021): 232. http://dx.doi.org/10.3390/polym13020232.

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In this experimental study, the use of 5-hydroxymethyl-furfural (HMF) organic compound as a grafting agent to chitosan natural polymer (CS) was examined. One optimized chitosan derivative was synthesized, and then tested (CS-HMF), in order to uptake nickel, mercury, and barium metal ions from single- and triple-component (multi-component) aqueous solutions. The characterization of the material before and after the metal uptake was achieved by scanning electron microscopy (SEM). The ability of the adsorption of CS-HMF was tested at pH = 6. The adjusting of temperature from 25 to 65 °C caused th

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43

Liakos, Efstathios V., Mariza Mone, Dimitra A. Lambropoulou, Dimitrios N. Bikiaris, and George Z. Kyzas. "Adsorption Evaluation for the Removal of Nickel, Mercury, and Barium Ions from Single-Component and Mixtures of Aqueous Solutions by Using an Optimized Biobased Chitosan Derivative." Polymers 13, no. 2 (2021): 232. http://dx.doi.org/10.3390/polym13020232.

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In this experimental study, the use of 5-hydroxymethyl-furfural (HMF) organic compound as a grafting agent to chitosan natural polymer (CS) was examined. One optimized chitosan derivative was synthesized, and then tested (CS-HMF), in order to uptake nickel, mercury, and barium metal ions from single- and triple-component (multi-component) aqueous solutions. The characterization of the material before and after the metal uptake was achieved by scanning electron microscopy (SEM). The ability of the adsorption of CS-HMF was tested at pH = 6. The adjusting of temperature from 25 to 65 °C caused th

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44

Salam, Abdus, Marielis C. Zambrano, Richard A. Venditti, and Joel J. Pawlak. "Hemicellulose and starch citrate chitosan foam adsorbents for removal of arsenic and other heavy metals from contaminated water." BioResources 16, no. 3 (2021): 5628–45. http://dx.doi.org/10.15376/biores.16.3.5628-5645.

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Arsenic and other heavy metal contaminants in water are a significant global health threat. In this study, low-cost, sulfur-free, sustainable, water-insoluble materials with heavy metal remediation properties were produced from renewable resources such as starch, xylan, citric acid, and chitosan. Synthesized starch citrate-chitosan (SCC) foam and xylan citrate-chitosan (XCC) foam were flexible, porous, and elastic. The foams’ arsenic uptake in water was significantly greater than five different commercial metal remediating agents. The mercury and lead uptakes with the synthesized foams were si

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45

Vaeruza, Ida, Kukuh Eka Kurniansyah, Faqih Darma, and Ian Yulianti. "FABRIKASI SENSOR SERAT OPTIK PLASTIK UNTUK DETEKSI ION LOGAM MERKURI DALAM AIR." Komunikasi Fisika Indonesia 16, no. 2 (2019): 123. http://dx.doi.org/10.31258/jkfi.16.2.123-129.

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The presence of mercury ions is a serious threat to human health and environment. Water consumption containing mercury is very dangerous for human healt. The purpose of this work is to design a heavy metal sensor ion using plastic optical fiber to detect mercury ions in water. The sensor was fabricated by coating the optical fiber by chitosan through dip-coating technique. There are three diameter of optical fiber sensor that was fabricated, which are 1087.64 μm (sensor A), 1691.64 μm (sensor B) and 1736.33 μm (sensor C). Sensor characterization was done by connected the tip of plastic optical

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Zhang, Anchao, Jun Xiang, Lushi Sun, et al. "Preparation, Characterization, and Application of Modified Chitosan Sorbents for Elemental Mercury Removal." Industrial & Engineering Chemistry Research 48, no. 10 (2009): 4980–89. http://dx.doi.org/10.1021/ie9000629.

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Kyzas, George Z., and Margaritis Kostoglou. "Swelling–adsorption interactions during mercury and nickel ions removal by chitosan derivatives." Separation and Purification Technology 149 (July 2015): 92–102. http://dx.doi.org/10.1016/j.seppur.2015.05.024.

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Jeon, Choong, and Kwang Ha Park. "Adsorption and desorption characteristics of mercury(II) ions using aminated chitosan bead." Water Research 39, no. 16 (2005): 3938–44. http://dx.doi.org/10.1016/j.watres.2005.07.020.

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Hai, Reti, Hong Feng, and Wenxing Wang. "Adsorption of Mercury(II) by Beer Yeast Immobilized in Chitosan/Silicone Leg." Asian Journal of Chemistry 25, no. 12 (2013): 6528–30. http://dx.doi.org/10.14233/ajchem.2013.14339.

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Lukum, Astin, Yoseph Paramata, Deasy N. Botutihe, Jefrin Akume, Kostiawan Sukamto, and Arfiani Rizki Paramata. "Development of Bioadsorbent Chitosan from Shrimp Shell Waste to Mercury Absorption Efficiency." IOP Conference Series: Earth and Environmental Science 589 (November 19, 2020): 012018. http://dx.doi.org/10.1088/1755-1315/589/1/012018.

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