The activated carbon obtained from the shells of Macore fruit was used as an adsorbent for the removal of dyes such as methylene blue (MB) and methyl orange (MO) from synthetic contaminated aqueous solutions. It holds that the adsorption is more favourable at acidic pH, with an optimum adsorption at pH = 2. At this pH, the adsorption rate is more than 98% for the two dyes. The sorption capacity was enhanced by increasing the amount of activated carbon. Above room temperature, the adsorption rates remain constant at a value of approximately 99%. The study of the adsorption kinetics indicates that the adsorption on the studied dyes follows second-order kinetics. The isotherm adsorption data were found to be described by both Langmuir and Freundlich. In addition, the thermodynamic studies revealed that the adsorption process is a favourable, endothermic and spontaneous phenomenon. (C) 2015 Elsevier Ltd. All rights reserved.
机构:
Shaoxing Univ, Yuanpei Coll, Dept Life Sci, Shaoxing 312000, Peoples R ChinaShaoxing Univ, Yuanpei Coll, Dept Life Sci, Shaoxing 312000, Peoples R China
Shou, Jianxin
Qiu, Muqing
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Shaoxing Univ, Coll Life Sci, Shaoxing 312000, Peoples R ChinaShaoxing Univ, Yuanpei Coll, Dept Life Sci, Shaoxing 312000, Peoples R China
机构:
Hubei Univ Technol, Hubei Prov Key Lab Green Mat Light Ind, 28 Nanli Rd, Wuhan 430068, Peoples R ChinaHubei Univ Technol, Hubei Prov Key Lab Green Mat Light Ind, 28 Nanli Rd, Wuhan 430068, Peoples R China
Feng, Qinghua
Cheng, Heli
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Hubei Univ Technol, Hubei Prov Key Lab Green Mat Light Ind, 28 Nanli Rd, Wuhan 430068, Peoples R ChinaHubei Univ Technol, Hubei Prov Key Lab Green Mat Light Ind, 28 Nanli Rd, Wuhan 430068, Peoples R China
Cheng, Heli
Chen, Fangeng
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S China Univ Technol, State Key Lab Pulp & Paper Engn, 381 Wushan Rd, Guangzhou 510640, Guangdong, Peoples R ChinaHubei Univ Technol, Hubei Prov Key Lab Green Mat Light Ind, 28 Nanli Rd, Wuhan 430068, Peoples R China
Chen, Fangeng
Zhou, Xuesong
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S China Univ Technol, State Key Lab Pulp & Paper Engn, 381 Wushan Rd, Guangzhou 510640, Guangdong, Peoples R ChinaHubei Univ Technol, Hubei Prov Key Lab Green Mat Light Ind, 28 Nanli Rd, Wuhan 430068, Peoples R China
Zhou, Xuesong
Wang, Peng
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Hubei Univ Technol, Hubei Prov Key Lab Green Mat Light Ind, 28 Nanli Rd, Wuhan 430068, Peoples R ChinaHubei Univ Technol, Hubei Prov Key Lab Green Mat Light Ind, 28 Nanli Rd, Wuhan 430068, Peoples R China
Wang, Peng
Xie, Yimin
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Hubei Univ Technol, Hubei Prov Key Lab Green Mat Light Ind, 28 Nanli Rd, Wuhan 430068, Peoples R ChinaHubei Univ Technol, Hubei Prov Key Lab Green Mat Light Ind, 28 Nanli Rd, Wuhan 430068, Peoples R China
机构:
Cent Leather Res Inst, Council Sci & Ind Res, Chem Engn Area, Madras 600020, Tamil Nadu, India
Natl Inst Technol, Dept Chem Engn, Tiruchirappalli 620015, IndiaCent Leather Res Inst, Council Sci & Ind Res, Chem Engn Area, Madras 600020, Tamil Nadu, India
Nethaji, S.
Sivasamy, A.
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Cent Leather Res Inst, Council Sci & Ind Res, Chem Engn Area, Madras 600020, Tamil Nadu, IndiaCent Leather Res Inst, Council Sci & Ind Res, Chem Engn Area, Madras 600020, Tamil Nadu, India
Sivasamy, A.
Thennarasu, G.
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Cent Leather Res Inst, Council Sci & Ind Res, Chem Engn Area, Madras 600020, Tamil Nadu, IndiaCent Leather Res Inst, Council Sci & Ind Res, Chem Engn Area, Madras 600020, Tamil Nadu, India
Thennarasu, G.
Saravanan, S.
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Natl Inst Technol, Dept Chem Engn, Tiruchirappalli 620015, IndiaCent Leather Res Inst, Council Sci & Ind Res, Chem Engn Area, Madras 600020, Tamil Nadu, India