Removal of cationic dye from aqueous solution using recombinant gellan gum-coated MgO nanoparticles

被引:6
作者
Sukumar, Soumiya [1 ]
Arockiasamy, Santhiagu [1 ]
Moothona, Manjusha Chemmattu [1 ]
机构
[1] Natl Inst Technol Calicut, Sch Biotechnol, Calicut 673601, Kerala, India
关键词
GG-MgO; Malachite green; DLS; Isotherm; Bioremediation; MALACHITE GREEN; ACTIVATED CARBON; ADSORPTION; CHITOSAN; KINETICS; BLUE;
D O I
10.1007/s11696-021-02035-6
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Gellan gum is a linear, water-soluble anionic polymer formed by tetrasaccharides in the molar ratio 2:1:1 of repeating d-glucose, d-glucuronic acid and l-rhamnose. Sphingomonas paucimobilis ATCC 31461 is currently employed for the industrial synthesis of gellan gum. GG-MgO nanoparticles were synthesized and employed to decolorize dye effluent. The adsorption capacity of GG-MgO has been investigated for cationic malachite green dye. The physio-chemical characteristics of the GG-MgO nanoadsorbent were analyzed by utilizing SEM, DLS, FTIR, TGA, DSC and XRD. Characterization by SEM confirmed GG-MgO has a rough structure. The incorporation of MgO nanoparticles over the gellan gum surface was validated by XRD, DSC and FTIR. Thermogravimetric examined the thermal stability of the nanoadsorbent. DLS exhibited the steady form of MgO Nps in the gellan matrix. The test parameters like pH, temperature, stirring speed, contact time, adsorbent dosage and initial dye concentration were assessed during the batch studies to estimate the percentage elimination of malachite green by GG-MgO nanoadsorbent. The maximum malachite green removal of 98% was achieved using GG-MgO during the optimum pH 7, temperature 60 degrees C, malachite green concentration 5 mg/l, adsorbent dose 0.2 g, contact time 30 min and stirring speed 100 rpm. The isotherm examinations evaluated the best fit. The malachite green adsorption on the nanoadsorbent suits well with the Langmuir and the highest monolayer adsorption of 92.5 mg/g was observed. This research rendered a promising approach of biopolymeric incorporation for enhancing the metal oxide nanoadsorbent adsorption capacity.
引用
收藏
页码:3155 / 3168
页数:14
相关论文
共 31 条
[21]   O,N-carboxymethyl chitosan-zinc complex: A novel chitosan complex with enhanced antimicrobial activity [J].
Patale, Ramchandra L. ;
Patravale, Vandana B. .
CARBOHYDRATE POLYMERS, 2011, 85 (01) :105-110
[22]   Nanoparticles Loaded Biopolymer as Effective Adsorbent for Adsorptive Removal of Malachite Green from Aqueous Solution [J].
Raval N.P. ;
Shah P.U. ;
Shah N.K. .
Water Conservation Science and Engineering, 2016, 1 (01) :69-81
[23]   Overview of wastewater treatment and recycling in the textile processing industry [J].
Rott, U ;
Minke, R .
WATER SCIENCE AND TECHNOLOGY, 1999, 40 (01) :137-144
[24]   Eco-biocompatibility of chitosan coated biosynthesized copper oxide nanocomposite for enhanced industrial (Azo) dye removal from aqueous solution and antibacterial properties [J].
Sathiyavimal, Selvam ;
Vasantharaj, Seerangaraj ;
Kaliannan, Thamaraiselvi ;
Pugazhendhi, Arivalagan .
CARBOHYDRATE POLYMERS, 2020, 241
[25]   Effective Removal of Methylene Blue Dye Using Silver Nanoparticles Containing Grafted Polymer of Guar Gum/Acrylic Acid as Novel Adsorbent [J].
Singh, Jagdeep ;
Dhaliwal, A. S. .
JOURNAL OF POLYMERS AND THE ENVIRONMENT, 2021, 29 (01) :71-88
[26]  
Soumiya S, 2021, RES J BIOTECHNOL, V16, P133
[27]   Synthesis of magnesium hydroxide and oxide nanoparticles using a spinning disk reactor [J].
Tai, Clifford Y. ;
Tai, Chia-Te ;
Chang, Ming-Hui ;
Liu, Hwai-Shen .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2007, 46 (17) :5536-5541
[28]   Preparation of sludge-based activated carbon and its application in dye wastewater treatment [J].
Wang, Xiaoning ;
Zhu, Nanwen ;
Yin, Bingkui .
JOURNAL OF HAZARDOUS MATERIALS, 2008, 153 (1-2) :22-27
[29]   Chitosan-based zinc oxide nanoparticle for enhanced anticancer effect in cervical cancer: A physicochemical and biological perspective [J].
Wu, Henghui ;
Zhang, Juxin .
SAUDI PHARMACEUTICAL JOURNAL, 2018, 26 (02) :205-210
[30]   Effective adsorptive removal of azo dyes over spherical ZnO nanoparticles [J].
Zafar, Muhammad Nadeem ;
Dar, Qamar ;
Nawaz, Faisal ;
Zafar, Muhammad Naueed ;
Igbal, Munawar ;
Nazar, Muhammad Faizan .
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2019, 8 (01) :713-725