Perchlorate adsorption onto orange peel modified by cross-linking amine groups from aqueous solutions.
Identifieur interne : 000508 ( Main/Exploration ); précédent : 000507; suivant : 000509Perchlorate adsorption onto orange peel modified by cross-linking amine groups from aqueous solutions.
Auteurs : Lixiang Zhang [République populaire de Chine] ; Zhiquan Yang [République populaire de Chine] ; Ting Li [République populaire de Chine] ; Shaoqi Zhou [République populaire de Chine] ; Zhenyi Wu [République populaire de Chine]Source :
- Water science and technology : a journal of the International Association on Water Pollution Research [ 0273-1223 ] ; 2015.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Amines, Perchlorates.
- chemistry : Citrus sinensis, Fruit.
- chemical , metabolism : Water Pollutants, Chemical.
- Adsorption, Kinetics.
Abstract
Orange peel was made into a highly efficient bio-sorbent by modification with cross-linking amine groups for perchlorate removal. Bench-scale experiments were performed to explore the factors affecting the perchlorate adsorption onto the modified orange peel (MOP). Perchlorate could be removed effectively at a wide range of pH (from 1.5 to 11). The maximum adsorption capacity of MOP for perchlorate was calculated as 154.1 mg/g within 15 min. The Redlich-Peterson model was fitted to the adsorption isotherm very well (R2>0.99). The adsorption process was spontaneous and exothermic, which was proved by thermodynamic parameters (Gibbs energy and enthalpy). The pseudo-second-order kinetic model could provide satisfactory fitting of the experimental data (R2>0.99). The scanning electron microscopy and energy-dispersive X-ray analysis indicated that the surface of MOP became smooth and the contents of N and Cl in MOP were increased during the modification process. Elemental analysis results showed that the nitrogen content in MOP was increased to 5.5%, while it was 1.06% in orange peel. The adsorption mechanism was also explored using zeta potential and Fourier transform infrared spectroscopy analysis. Ion exchange was the primary mechanism responsible for uptake of perchlorate onto MOP.
DOI: 10.2166/wst.2015.130
PubMed: 26038927
Affiliations:
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510006, China and The Key Laboratory of Pollution Control and Ecosystem Restoration, Industry Clusters of Ministry of Education, Guangzhou, Guangdong 510006, China E-mail: zqyang@scut.edu.cn.</nlm:affiliation><country wicri:rule="url">République populaire de Chine</country><wicri:regionArea>College of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, China and The Key Laboratory of Pollution Control and Ecosystem Restoration, Industry Clusters of Ministry of Education, Guangzhou, Guangdong 510006</wicri:regionArea><wicri:noRegion>Guangdong 510006</wicri:noRegion></affiliation></author><author><name sortKey="Yang, Zhiquan" sort="Yang, Zhiquan" uniqKey="Yang Z" first="Zhiquan" last="Yang">Zhiquan Yang</name><affiliation wicri:level="1"><nlm:affiliation>College of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, China and The Key Laboratory of Pollution Control and Ecosystem Restoration, Industry Clusters of Ministry of Education, Guangzhou, Guangdong 510006, China E-mail: zqyang@scut.edu.cn.</nlm:affiliation><country wicri:rule="url">République populaire de Chine</country><wicri:regionArea>College of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, China and The Key Laboratory of Pollution Control and Ecosystem Restoration, Industry Clusters of Ministry of Education, Guangzhou, Guangdong 510006</wicri:regionArea><wicri:noRegion>Guangdong 510006</wicri:noRegion></affiliation></author><author><name sortKey="Li, Ting" sort="Li, Ting" uniqKey="Li T" first="Ting" last="Li">Ting Li</name><affiliation wicri:level="1"><nlm:affiliation>College of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, China and The Key Laboratory of Pollution Control and Ecosystem Restoration, Industry Clusters of Ministry of Education, Guangzhou, Guangdong 510006, China E-mail: zqyang@scut.edu.cn.</nlm:affiliation><country 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China University of Technology, Guangzhou 510641, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, China and The Key Laboratory of Pollution Control and Ecosystem Restoration, Industry Clusters of Ministry of Education, Guangzhou, Guangdong 510006, China E-mail: zqyang@scut.edu.cn; Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, China and State Key Laboratory of Subtropical Building Sciences, South China University of Technology, Guangzhou 510641</wicri:regionArea><placeName><settlement type="city">Jiangmen</settlement><region type="province">Guangdong</region></placeName></affiliation></author><author><name sortKey="Wu, Zhenyi" sort="Wu, Zhenyi" uniqKey="Wu Z" first="Zhenyi" last="Wu">Zhenyi Wu</name><affiliation wicri:level="1"><nlm:affiliation>Department of Chemistry, Xiamen University, Xiamen 361005, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Chemistry, Xiamen University, Xiamen 361005</wicri:regionArea><wicri:noRegion>Xiamen 361005</wicri:noRegion></affiliation></author></analytic><series><title level="j">Water science and technology : a journal of the International Association on Water Pollution Research</title><idno type="ISSN">0273-1223</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adsorption</term><term>Amines (chemistry)</term><term>Citrus sinensis (chemistry)</term><term>Fruit (chemistry)</term><term>Kinetics</term><term>Perchlorates (chemistry)</term><term>Water Pollutants, Chemical (metabolism)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Amines</term><term>Perchlorates</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Citrus sinensis</term><term>Fruit</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Water Pollutants, Chemical</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adsorption</term><term>Kinetics</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Orange peel was made into a highly efficient bio-sorbent by modification with cross-linking amine groups for perchlorate removal. Bench-scale experiments were performed to explore the factors affecting the perchlorate adsorption onto the modified orange peel (MOP). Perchlorate could be removed effectively at a wide range of pH (from 1.5 to 11). The maximum adsorption capacity of MOP for perchlorate was calculated as 154.1 mg/g within 15 min. The Redlich-Peterson model was fitted to the adsorption isotherm very well (R2>0.99). The adsorption process was spontaneous and exothermic, which was proved by thermodynamic parameters (Gibbs energy and enthalpy). The pseudo-second-order kinetic model could provide satisfactory fitting of the experimental data (R2>0.99). The scanning electron microscopy and energy-dispersive X-ray analysis indicated that the surface of MOP became smooth and the contents of N and Cl in MOP were increased during the modification process. Elemental analysis results showed that the nitrogen content in MOP was increased to 5.5%, while it was 1.06% in orange peel. The adsorption mechanism was also explored using zeta potential and Fourier transform infrared spectroscopy analysis. Ion exchange was the primary mechanism responsible for uptake of perchlorate onto MOP.</div></front></TEI><affiliations><list><country><li>République populaire de Chine</li></country><region><li>Guangdong</li></region><settlement><li>Jiangmen</li></settlement></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Zhang, Lixiang" sort="Zhang, Lixiang" uniqKey="Zhang L" first="Lixiang" last="Zhang">Lixiang Zhang</name></noRegion><name sortKey="Li, Ting" sort="Li, Ting" uniqKey="Li T" first="Ting" last="Li">Ting Li</name><name sortKey="Wu, Zhenyi" sort="Wu, Zhenyi" uniqKey="Wu Z" first="Zhenyi" last="Wu">Zhenyi Wu</name><name sortKey="Yang, Zhiquan" sort="Yang, Zhiquan" uniqKey="Yang Z" first="Zhiquan" last="Yang">Zhiquan Yang</name><name sortKey="Zhou, Shaoqi" sort="Zhou, Shaoqi" uniqKey="Zhou S" first="Shaoqi" last="Zhou">Shaoqi Zhou</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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