Preparation of Adsorbents Containing CdS Quantum Dots from the Orange Peel for the Sewage Treatment

Document Type : Research Article


1 Department of applied chemistry, University of Gonabad, Gonabad, I.R. IRAN

2 Faculty of Chemistry, University of Mazandaran, Babolsar, I.R. IRAN



Photocatalytic degradation of pollutants using the semiconductor Quantum Dots (QDs) can be applied to water treatment processes. In this paper, first, the Orange Peel (OP) and the Activated Carbon (AC) were prepared from the orange peel wastes. Second, CdS quantum dot-loaded adsorbents were prepared from these adsorbents and they were labeled as [email protected] and [email protected], respectively. This new photocatalyst was characterized using FT-IR, FESEM, and UV-Vis. Then, the adsorption properties of these prepared adsorbents for the removal of alizarin, as an organic pollutant, were studied, and AC was selected as a better adsorbent for this purpose. Afterward, the photocatalytic properties of these adsorbents were also studied for the degradation of alizarin, under sunlight irradiation. A factorial design method was used to achieve the optimal condition and the best photocatalyst was selected. Finally, [email protected] nanocomposite was selected as a more effective photocatalyst with the degradation efficiency of 82% of dye solution, under 2h sunlight irradiation.


Main Subjects

[1] Ahmed M.B., Zhou J.L., Ngo H.H., Guo W., Thomaidis N.S., Xu J., Progress in the Biological And Chemical Treatment Technologies for Emerging Contaminant Removal from Wastewater: A Critical Review, J. Hazard. Mater., 323:274-298 (2017).
[3] Vakili M., Rafatullah M., Salamatinia B., Abdullah A.Z., Ibrahim M.H., Tan K.B., Gholami Z., Amouzgar P., Application of Chitosan and its Derivatives as Adsorbents for Dye Removal from Water and Wastewater: A Review, Carbohydr. Polym., 113: 115–130 (2014).
[4] Seow T.W., Lim CK., Removal of dye by Adsorption: A Review, Int. J. Appl. Eng., 11(4): 2675-2679 (2016).
[5] Yue Q.Y., Gao B.Y., Wang Y., Zhang H., Sun X., Wang S.G., Gu R.R., Synthesis of Polyamine Flocculants and their Potential Use in Treating Dye Wastewater, J. Hazard. Mater., 152: 221–227 (2008).
[6] Wu J., Eiteman M.A., Law S.E., Evaluation of Membrane Filtration and Ozonation Processes for Treatment of Reactive-Dye Wastewater, J. Environ. Eng., 124:272–277 (1998).
[7] Alizadeh M., Ghahramani E., Zarrabi M., Hashemi S.. Efficient De-Colorization of Methylene Blue by Electro-Coagulation Method: Comparison of Iron and Aluminum Electrode, Iran. J. Chem. Chem. Eng. (IJCCE). 34(1): 39-47 (2015).
[8] Kansal S.K., Lamba R., Mehta S.K., Umar A., Photocatalytic Degradation of Alizarin Red S Using Simply Synthesized ZnO Nanoparticles, Mater. Lett., 106:385–389(2013).
[9] Reddy K.R., Hassan M., Gomes V.G., Hybrid Nanostructures Based on Titanium Dioxide for Enhanced Photocatalysis, Appl. Catal. A Gen., 489: 1–16 (2015).
[10] Reddy K.R., Nakata K., Ochiai T., Murakami T., Tryk D.A., Fujishima A., Facile Fabrication and Photocatalytic Application of Ag Nanoparticles-TiO2 Nanofiber Composites, J. Nanosci. Nanotechnol., 11: 3692–3695 (2011).
[11] Kachbouri S., Elaloui E., Moussaoui Y., The effect of Surfactant Chain Length and Type on the Photocatalytic Activity of Mesoporous TiO2 Nanoparticles Obtained Via Modified Sol-Gel Process. Iran. J. Chem. Chem. Eng. (IJCCE), 38(1):17-26 (2019).
[12] Samadi-Maybodi A., Abbasi F., Akhoondi R., Aqueous Synthesis and Characterization of CdS Quantum Dots Capped with Some Amino Acids and Investigations of their Photocatalytic Activities, Colloids Surfaces A Physicochem. Eng. Asp., 447: 111–119 (2014).
[13] Samadi-Maybodi A., Sadeghi-Maleki M.-R., In-Situ Synthesis of High Stable CdS Quantum Dots and Their Application For Photocatalytic Degradation of Dyes, Spectrochim. Acta Part A Mol. Biomol. Spectrosc., 152: 156–164 (2015).
[14] Samadi-Maybodi A., Sadeghi-Maleki M.-R., Preparation of Mesoporous SBA-15 Supported CdS Quantum Dots and Its Application for Photocatalytic Degradation of Organic Pollutants in Aqueous Media, J. Inorg. Organomet. Polym. Mater., 6:1–13(2018).
[15] Morales-Flores N., Pal U., Mora E.S., Photocatalytic Behavior of ZnO and Pt-Incorporated ZnO Nanoparticles in Phenol Degradation, Appl. Catal. A Gen., 394: 269–275 (2011).
[16] Ioannidou O., Zabaniotou A., Agricultural Residues as Precursors for Activated Carbon Production—A Review, Renew. Sustain. Energy Rev., 11: 1966–2005 (2007).
[17] Rafatullah M., Sulaiman O., Hashim R., Ahmad A., Adsorption of Methylene Blue on Low-Cost Adsorbents: A Review, J. Hazard. Mater., 177: 70–80 (2010).
[18] Qu X., Alvarez P.J.J., Li Q., Applications of Nanotechnology in Water and Wastewater Treatment, Water Res., 47: 3931–3946 (2013).
[19] Ullah R., Dutta J., Photocatalytic Degradation of Organic Dyes with Manganese-Doped ZnO Nanoparticles, J. Hazard. Mater., 156: 194–200 (2008).
[20] Zapata B., Balmaseda J., Fregoso-Israel E.,Torres-Garcia E., Thermo-Kinetics Study of Orange Peel In Air,J. Therm. Anal. Calorim., 98: 309–315 (2009).
[21] Xie Z., Guan W., Ji F., Song Z., Zhao Y., Production of biologically Activated Carbon from Orange Peel and Landfill Leachate Subsequent Treatment Technology, J. Chem., 2014: 1-10 (2014).
[22] Tsai W.-T., Hsien K.-J., Hsu H.-C., Adsorption of Organic Compounds from Aqueous Solution onto the Synthesized Zeolite, J. Hazard. Mater., 166: 635–641 (2009).
[23] Dong Y., Lu B., Zang S., Zhao J., Wang X., Cai Q., Removal of Methylene Blue from Coloured Effluents b Adsorption onto SBA‐15, J. Chem. Technol. Biotechnol., 86: 616–619 (2011).
[25] Protière M., Nerambourg N., Renard O., Reiss P., Rational Design of the Gram-Scale Synthesis of Nearly Monodisperse Semiconductor Nanocrystals, Nanoscale Res. Lett., 6: 472–486 (2011).
[26] Daneshvar N., Salari D., Khataee A.R., Photocatalytic Degradation of Azo Dye Acid Red 14 in Water: Investigation of the Effect of Operational Parameters, J. Photochem. Photobiol. A Chem., 157: 111–116 (2003).
[27] Guo Y., Jiang L., Wang L., Shi X., Fang Q., Yang L., Dong F., Shan C., Facile Synthesis of Stable Cadmium Sulfide Quantum Dots with Good Photocatalytic Activities under Stabilization of Hydrophobic Amino Acids, Mater. Lett., 74: 26–29 (2012).