Use of activated Chromolaena odorata biomass for the removal of crystal violet from aqueous solution: kinetic, equilibrium, and thermodynamic study

被引：9

作者：

Soosai, Michael Rahul ^{[1
,8
]}

Moorthy, Innasi Muthu Ganesh ^{[1
]}

Varalakshmi, Perumal ^{[2
]}

Syed, Asad ^{[3
]}

Elgorban, Abdallah Mohamed ^{[3
]}

Rigby, Sean Patrick ^{[4
]}

Natesan, Sivrajasekar ^{[5
]}

Gunaseelan, Sathaiah ^{[2
]}

Joshya, Yonas Camy ^{[6
]}

Baskar, Rajoo ^{[7
]}

Kumar, Rajaram Shyam ^{[1
]}

Karthikumar, Sankar ^{[1
]}

机构：

[1] Kamaraj Coll Engn & Technol, Dept Biotechnol, Madurai 625701, Tamil Nadu, India

[2] Madurai Kamaraj Univ, Sch Biotechnol, Dept Mol Microbiol, Madurai 625021, Tamil Nadu, India

[3] King Saud Univ, Coll Sci, Dept Bot & Microbiol, PO 2455, Riyadh 11451, Saudi Arabia

[4] Univ Nottingham, Geoenergy Res Ctr, Univ Pk, Nottingham NG7 2RD, England

[5] Kumaraguru Coll Technol, Dept Biotechnol, Coimbatore 641049, Tamil Nadu, India

[6] Karpagam Coll Engn, Dept Elect & Telecommun Engn, Coimbatore 641032, Tamil Nadu, India

[7] Kongu Engn Coll, Dept Food Technol, Erode 638060, Tamil Nadu, India

[8] Sathyabama Inst Sci & Technol, Dept Chem Engn, Chennai 600119, Tamil Nadu, India

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2023年 / 30卷 / 06期

关键词：

Adsorption; Chromolaena odorata biomass; Crystal violet dye; Kinetic model; Singles-stage batch adsorber design; METHYLENE-BLUE DYE; AGRICULTURAL WASTE; ADSORPTION; WATER; RED; OPTIMIZATION; DEGRADATION; SORPTION; SHELL; BIOSORPTION;

D O I：

10.1007/s11356-022-22822-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In the present study, biomass from the Chromolaena odorata plant's stem was activated using sulfuric acid to adsorb crystal violet (CV) dye. The adsorption operation of CV dye was studied considering the effect of variables like pH, initial dye concentration, time, adsorbent dosage, and temperature. The pseudo-second-order equation best fitted the kinetic study. The thermodynamic parameters such as activation energy (9.56 kJ/mol), change in Gibbs energy (81.43 to 96.7 kJ/mol), enthalpy change (6.89 kJ/mol), and entropy change (-254.4 J/mol K) were calculated. Response surface methodology estimated that at pH (4.902), adsorbent dosage (8.33 g/L), dye concentration (82.30 ppm), and temperature (300.13 K) dye removal of 97.53% is possible. FTIR, SEM, XRD, BJH, and BET confirmed adsorption operation. The adsorbent can be reused for 3 cycles effectively. Langmuir isotherm which best fitted the adsorption operation was used for designing a theoretical single-stage batch adsorber for large-scale operation.

引用

页码：14265 / 14283

页数：19

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