Journal ArticleDOI
A Comparative Study on the Adsorption of Acid and Reactive Dyes on Multiwall Carbon Nanotubes in Single and Binary Dye Systems
TLDR
In this article, the adsorption of reactive blue 4 (RB4) and acid red 183 (AR183) on a multiwall carbon nanotube (MWCNT) was investigated in single and binary dye systems.Abstract:
The adsorption of reactive blue 4 (RB4) and acid red 183 (AR183) on a multiwall carbon nanotube (MWCNT) was investigated in single and binary dye systems. The MWCNT presented a higher adsorption of RB4 than AR183 in single and binary dye systems, due to stronger interactions. In single dye solutions, adsorption capacities of the MWCNT for RB4 and AR183 at 25 °C are (69 and 45) mg·g–1, respectively. The higher temperature resulted in lower adsorption of the dyes on the MWCNT. In binary dye solutions, RB4 and AR183 showed competitive adsorption, resulting in RB4 adsorption but desorption of AR183 on the MWCNT. RB4 adsorption capacity in binary dye systems was also reduced to 56 mg·g–1 at 25 °C. The interaction of the dyes with MWCNT was found to be dominated by electrostatic attraction.read more
Citations
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Journal ArticleDOI
Adsorptive removal of dyes from aqueous solution onto carbon nanotubes: a review.
TL;DR: It is evident from the literature that CNT based nanosorbents have shown good potential for the removal of dyes from aqueous solution, however, still more research work should be focused on the development of cost effective, higher efficient and environmental friendly CNTbased nanOSorbents for their commercial applications.
Journal ArticleDOI
Role of nanomaterials in water treatment applications: a review.
Chella Santhosh,V. Velmurugan,George Jacob,Soon Kwan Jeong,Andrews Nirmala Grace,Amit Bhatnagar +5 more
TL;DR: In this article, various nanomaterials have been reviewed which have been used for water decontamination and a review has been given on adsorption, photocatalytic and antibacterial activity of nanommaterials.
Journal ArticleDOI
Removal of basic dye Auramine-O by ZnS:Cu nanoparticles loaded on activated carbon: optimization of parameters using response surface methodology with central composite design
Arash Asfaram,Mehrorang Ghaedi,Shilpi Agarwal,Inderjeet Tyagi,Vinod Kumar Gupta,Vinod Kumar Gupta +5 more
TL;DR: In this paper, the ultrasound-assisted removal of Auramine-O (AO) dye from aqueous solutions using ZnS:Cu nanoparticles loaded on activated carbon (ZnS-Cu-NP-AC) as an adsorbent was investigated.
Journal ArticleDOI
Mussel-inspired synthesis of polydopamine-functionalized graphene hydrogel as reusable adsorbents for water purification.
TL;DR: Benefiting from the abundant functional groups of polydopamine and the high specific surface areas of graphene hydrogel with three-dimensional interconnected pores, the prepared material exhibits high adsorption capacities toward a wide spectrum of contaminants, including heavy metals, synthetic dyes, and aromatic pollutants.
Journal ArticleDOI
Adsorptive remediation of environmental pollutants using novel graphene-based nanomaterials
TL;DR: Graphene oxide and graphene are new carbonaceous nanomaterials as discussed by the authors and have a large theoretical specific surface area and graphene oxide has functional groups, indicating their potential for the adsorption processes.
References
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Journal ArticleDOI
Non-conventional low-cost adsorbents for dye removal: A review
TL;DR: It is evident from a literature survey of about 210 recent papers that low-cost sorbents have demonstrated outstanding removal capabilities for certain dyes, and chitosan might be a promising adsorbent for environmental and purification purposes.
Journal ArticleDOI
Application of low-cost adsorbents for dye removal – A review
V K Gupta,Suhas +1 more
TL;DR: From a comprehensive literature review, it was found that some LCAs, in addition to having wide availability, have fast kinetics and appreciable adsorption capacities too.
Journal ArticleDOI
Natural zeolites as effective adsorbents in water and wastewater treatment
Shaobin Wang,Yuelian Peng +1 more
TL;DR: A review of the recent development of natural zeolites as adsorbents in water and wastewater treatment can be found in this paper, where the properties and modification of natural zerosite are discussed and the modified zerosites achieving higher adsorption capacity for organics and anions.
Journal ArticleDOI
Removal of cationic dyes from aqueous solution using magnetic multi-wall carbon nanotube nanocomposite as adsorbent.
Ji-Lai Gong,Bin Wang,Guangming Zeng,Chunping Yang,Cheng-Gang Niu,Qiuya Niu,Wen-Jin Zhou,Yi Liang +7 more
TL;DR: The prepared MMWCNT adsorbent displayed the main advantage of separation convenience compared to the present adsorption treatment and was well fitted by a pseudo second-order model.
Journal ArticleDOI
Removal of dyes from aqueous solution using fly ash and red mud.
TL;DR: Fly ash and red mud have been employed as adsorbents for the removal of a typical basic dye, methylene blue, from aqueous solution and it is found that fly ash generally shows higher adsorption capacity than red mud.