Removal efficiency of Pb(ii) by coal fly ash cenospheres@carbon nanotubes

被引：1

作者：

Gao, Hongjie ^{[1
]}

Zhang, Xiaomin ^{[1
,2
]}

He, Bo ^{[1
]}

Zhang, Liang ^{[3
]}

Wang, Ke ^{[2
]}

Liu, Jiaqian ^{[2
]}

Liu, Bing ^{[2
]}

Wang, Zhuang ^{[2
]}

Ma, Jianxiang ^{[2
]}

机构：

[1] Xian Univ Architecture & Technol, Sch Mat Sci & Engn, Xian 710055, Peoples R China

[2] Xian Univ Architecture & Technol, Sch Resources Engn, Xian 710055, Peoples R China

[3] Xian Univ Architecture & Technol, Sch Chem & Chem Engn, Xian 710055, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2023年 / 47卷 / 34期

基金：

中国国家自然科学基金;

关键词：

WATER; ADSORPTION; COMPOSITE; ADSORBENT; ION;

D O I：

10.1039/d3nj02411c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Industrial waste cenospheres (CSs) were used as raw materials to obtain cenospheres@carbon nanotubes (CSs@CNTs) by chemical vapor deposition (CVD) and used as adsorbents for Pb(ii) ions. The fluffy 3D spherical network structure of CSs@CNTs avoided the aggregation of CNTs and ensured sufficient contact area. CNTs with a high density of surface defects provide abundant adsorption sites for Pb(ii) ions. To study the adsorption process, the effect of pH on the effective removal of Pb(ii) ions was investigated. In addition, the adsorption isotherm, adsorption kinetics, and adsorption thermodynamics were fitted and analyzed. The experimental results showed that the adsorption capacity at equilibrium was 36.01 mg g(-1) when the adsorbent dosage was 0.05 g, the Pb(ii) ion concentration was 60 mg L-1, the optimal pH 6, and the adsorption contact time was 180 min. At 298 K, the adsorption isotherm fitted is consistent with the Freundlich equation. The adsorption kinetics were consistent with the quasi-secondary kinetic equation. Thermodynamic studies showed that the adsorption of Pb(ii) ions is a spontaneous and heat-absorbing process. The adsorbed Pb(ii) ions were completely eluted with 0.10 mol L-1 HCl, and the adsorption stability was good after five adsorption-desorption cycles. CSs@CNTs as Pb(ii) ion adsorbents not only have great market potential in wastewater treatment but also realize high value-added utilization of solid waste.

引用

页码：15963 / 15972

页数：10

共 55 条

[1] Chelating activity of (2E,2′E)-2,2′-(pyridine-2,6-diylbis(ethan-1-yl-1-ylidene)bis(N-ethylhydrazinecarbothioamide) [J].

Ali, Mayada S. ;

Hasan, Mohamad .

JOURNAL OF MOLECULAR STRUCTURE, 2021, 1238

[2] A new approach for one step synthesis of magnetic carbon nanotubesidiatomite earth composite by chemical vapor deposition method: Application for removal of lead ions [J].

Alijani, Hassan ;

Beyki, Mostafa Hossein ;

Shariatinia, Zahra ;

Bayat, Mehrnoosh ;

Shemirani, Farzaneh .

CHEMICAL ENGINEERING JOURNAL, 2014, 253 :456-463

[3] Catalytic CVD growth of millimeter-tall single-wall carbon nanotube carpets using industrial gaseous waste as a feedstock [J].

Almkhelfe, Haider ;

Li, Xu ;

Rao, Rahul ;

Amama, Placidus B. .

CARBON, 2017, 116 :181-190

[4] Lead removal from water by choline chloride based deep eutectic solvents functionalized carbon nanotubes [J].

AlOmar, Mohamed Khalid ;

Alsaadi, Mohammed Abdulhakim ;

Hayyan, Maan ;

Akib, Shatirah ;

Ibrahim, Rusul Khaleel ;

Hashim, Mohd Ali .

JOURNAL OF MOLECULAR LIQUIDS, 2016, 222 :883-894

[5] Evaluation of the Adsorptive Performances of Rapeseed Waste in the Removal of Toxic Metal Ions in Aqueous Media [J].

Arsenie, Teodora ;

Cara, Irina Gabriela ;

Popescu, Maria-Cristina ;

Motrescu, Iuliana ;

Bulgariu, Laura .

WATER, 2022, 14 (24)

[6] Green and robust adsorption and recovery of Europium(III) with a mechanism using hybrid donor conjugate materials [J].

Awual, Md. Rabiul ;

Hasan, Md. Nazmul ;

Hasan, Md. Munjur ;

Salman, Md. Shad ;

Sheikh, Md Chanmiya ;

Kubra, Khadiza Tul ;

Islam, Md. Shahinoor ;

Marwani, Hadi M. ;

Islam, Aminul ;

Khaleque, Md. Abdul ;

Waliullah, R. M. ;

Hossain, Mohammed Sohrab ;

Rasee, Adiba Islam ;

Rehan, Ariyan Islam ;

Awual, Mrs Eti .

SEPARATION AND PURIFICATION TECHNOLOGY, 2023, 319

[7] Naked-eye lead(II) capturing from contaminated water using innovative large-pore facial composite materials [J].

Awual, Md Rabiul ;

Hasan, Md Munjur ;

Iqbal, Jibran ;

Islam, Aminul ;

Islam, Md Aminul ;

Asiri, Abdullah M. ;

Rahman, Mohammed M. .

MICROCHEMICAL JOURNAL, 2020, 154

[8] A ligand based innovative composite material for selective lead(II) capturing from wastewater [J].

Awual, Md Rabiul ;

Hasan, Md Munjur .

JOURNAL OF MOLECULAR LIQUIDS, 2019, 294

[9] Offering an innovative composited material for effective lead(II) monitoring and removal from polluted water [J].

Awual, Md. Rabiul ;

Hasan, Md. Munjur ;

Islam, Aminul ;

Rahman, Mohammed M. ;

Asiri, Abdullah M. ;

Khaleque, Md. Abdul ;

Sheikh, Md. Chanmiya .

JOURNAL OF CLEANER PRODUCTION, 2019, 231 :214-223

[10] Mesoporous composite material for efficient lead(II) detection and removal from aqueous media [J].

Awual, Md Rabiul .

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2019, 7 (03)

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