Chiang Mai Journal of Science

Print ISSN: 0125-2526 | eISSN : 2465-3845

2,466
Articles
Q3 1.0
Impact Factor
Q2 1.6
CiteScore
7 days
Avg. First Decision
Outline
Figures and Tables
ARTICLE METRICS
Views 1,639
Downloads 149

Adsorption Performance of Spherical Porous SiO2 on Heavy Metal Cu2+ in Wastewater

Yan-Min Chen, Zhen-Zhen Chen, Bei-Bei Qi, Ye-Xuan Cai, Jia-Meng Li and Yi-Fan Han
* Author for corresponding; e-mail address: yanminchen2011@163.com
Volume: Vol.52 No.5 (September 2025)
Research Article
DOI: https://doi.org/10.12982/CMJS.2025.075
Received: 5 June 2025, Revised: 10 August 2025, Accepted: 12 August 2025, Published: 12 September 2025

Citation: Chen Y.-M., Chen Z.-Z., Qi B.-B., Cai Y.-X., Li J.-M. and Han Y.-F., Adsorption performance of spherical porous SiO2 on heavy metal Cu2+ in wastewater. Chiang Mai Journal of Science, 2025; 52(5): e2025075. DOI 10.12982/CMJS.2025.075.

Graphical Abstract

Graphical Abstract

Abstract

     Spherical porous SiO2 was synthesized via TEOS hydrolysis combined with NaOH etching, and its application in removing heavy metal Cu2+ from wastewater was investigated. The morphology, specific surface area, pore structure, and phase of pre- and post-etching SiO2 were characterized using transmission electron microscopy (TEM), N2 adsorption analyzer, and X-ray diffraction (XRD), respectively. Additionally, detailed studies were conducted on the adsorption kinetics, isotherms, and thermodynamics, as well as the effects of adsorbent dosage, ionic strength, and pH on Cu2+ removal. The results showed that the post-etching SiO2 (denoted as ESP-SiO2) presented a porous nanospherical morphology, with significantly larger specific surface area and pore volume compared to the pre-etching sample. Furthermore, the SiO2 underwent a transformation from an amorphous to a crystalline phase. The adsorption kinetics of Cu2+ onto ESP-SiO2 was well fitted by the pseudo-second-order model, and the adsorption isotherm conformed to the Langmuir model, with a maximum adsorption capacity of 172.41 mg/g. Thermodynamic analysis revealed that the adsorption process was spontaneous, exothermic, and accompanied by an increase in entropy. For a 50 mg/L Cu2+ solution, a removal efficiency of 86.5% was achieved when the dosage of ESP-SiO2 was 0.05 g. Moreover, the material exhibited strong resistance to interference from ionic strength (up to 0.1 mol/L), and the optimal pH for adsorption was 5.5. Given its advantages of low cost, simple preparation, and high removal efficiency, ESP-SiO2 holds great application potential in the treatment of heavy metal-containing wastewater.

Keywords: SiO2, porous, heavy metal wastewater, adsorption, Cu2+

Related Articles

Adsorption of Methyl Orange from Aqueous Solution Using Chitosan/ZSM-5 Composite
DOI: 10.12982/CMJS.2026.085.

Mencui Ning and Runhu Zhang*

Vol.53 No.5 (September 2026)
Research Article View: 368 Download: 116
Barite Adsorption Efficiency for Removal of Mannose. Experimental Measurements and Equilibrium Study
DOI: 10.12982/CMJS.2025.034.

Mustafa Jaip Allah Abdelmageed Abualreish

Vol.52 No.3 (May 2025)
Research Article View: 797 Download: 318
A Rhizobacterium Kitasatospora nipponensis Demonstrates Antifungal Activity against Basal Stem Rot Disease and Promotes Plant Growth in Oil Palm (Elaeis guineensis) Seedlings
DOI: 10.12982/CMJS.2025.033.

Anurag Sunpapao, Supaporn Pithakkit and Prisana Wonglom

Vol.52 No.3 (May 2025)
Research Article View: 1,450 Download: 417
Removal of Chromium (III) Heavy Metal Ions from Aqueous Solutions by Green Synthesized Calix[6]arene
DOI: 10.12982/CMJS.2025.005.

Susy Yunita Prabawati, Nina Hamidah and Afifah Mufidati

Vol.52 No.1 (January 2025)
Research Article View: 1,228 Download: 394
H2S Removal from Biogas using Steel Wool (Fe2O3) Adsorption Combined with Water Absorption: Experimental and Modelling via RSM
DOI: 10.12982/CMJS.2024.027.

Jiraporn Paoaiang, Prukraya Pongyeela, Nirana Chairerk and Juntima Chungsiriporn

Vol.51 No.2 (March 2024)
Research Article View: 2,352 Download: 1,948
Water-based Synthesis of MIL-53(Al) at Room Temperature: An Effective Adsorbent for Oxytetracycline (OTC) Antibiotic Removal from Water
DOI: 10.12982/CMJS.2024.010.

Parnuch Hongsawat, Phuri Kalnaowakul and Panida Prarat

Vol.51 No.1 (January 2024)
Research Article View: 2,439 Download: 747
Development and Optimization of an Amperometric Bi-enzyme Biosensor for Aspartame Determination
DOI: 10.12982/CMJS.2023.064.

Tanaporn Tangtawewipat and Saipin Thanachasai

Vol.50 No.6 (November 2023)
Research Article View: 1,616 Download: 610
Preparation of Porous Silica Nanoparticles by Chemical Etching for Removal of Paraquat from Aqueous Solution
DOI: 10.12982/CMJS.2023.009.

Kanokwan Darasoon, Supawitch Hoijang, Tanapong Kunakham, Sorapong Janhom, Supon Ananta, Gyu Leem and Laongnuan Srisombat

Vol.50 No.1 (January 2023)
Research Article View: 2,102 Download: 1,248
Hydrochar from Lansium domesticum and Salacca zalacca Peel as Adsorbent on Rhodamine-B Removal: Adsorption Process and Regeneration Studies
DOI: 10.12982/CMJS.2022.108.

Mauizatul Hasanah, Alfan Wijaya, Risfidian Mohadi, Fitri Suryani Arsyad and Aldes Lesbani

Vol.49 No.6 (November 2022)
Research Article View: 2,214 Download: 501
2-Methylimidazole-modified Iron Metal-organic Framework as an Efficient Methylene Blue Adsorbent
DOI: 10.12982/CMJS.2022.104.

Yingxin Zhao, Hao Hu, Shengyu Zhang, Shiya Feng, Yun Yang, Xiongjian Li and Shuijin Yang

Vol.49 No.6 (November 2022)
Research Article View: 2,088 Download: 522
Process Optimization and Modeling of Low-cost Activated Carbon Preparation and Its Application in Chromium(VI) Removal
DOI: 10.12982/CMJS.2022.100.

Theeradit Phothitontimongkol and Kanyarak Prasertboonyai

Vol.49 No.6 (November 2022)
Research Article View: 2,134 Download: 579
Sorption Studies of Cesium on Kunipia-F Bentonite and Silicon Dioxide
DOI: 10.12982/CMJS.2022.093.

Anan O-Manee, Youichi Enokida and Kayo Sawada

Vol.49 No.5 (September 2022)
Research Article View: 2,045 Download: 665
Cigarette Butts Valorization: Activated Hydrochar for Methylene Blue Removal
DOI: 10.12982/CMJS.2022.062.

Naphatsarnan Phasukarratchai, Budsarin Yattipat, Parichat Muengkrajang, Sasishai Permpoon and Alissara Reungsang

Vol.49 No.4 (July 2022)
Research Article View: 2,233 Download: 1,341
Non-Covalent Interactions between Graphene and Cluster of Ruthenium Oxides and Vanadium Oxides : A Dispersioncorrected Density Functional Theory Study
page: 1606 - 1619

Paphawarin Kheownil, Parameat Seesopha, Sawitree Chuaychoocherd, Panichakorn Jaiyong and Yuthana Tantirungrotechai

Vol.48 No.6 (November 2021)
Research Article View: 1,854 Download: 957
Density Functional Theory Study of Methane Adsorption on LaCoO3 (001) Surface
page: 1645 - 1656

Xuefeng Wang, Hongyan Zhang,Cunbao Deng, Ling Qiao and Shuangli Du

Vol.48 No.6 (November 2021)
Research Article View: 1,898 Download: 506
Preparation of Cattail-derived Activated Carbon and Its Adsorption Performance toward Ibuprofen and Diclofenac in Water
page: 1538 - 1554

Suhua Han, Qiannan Cao, Dongxu Qian, Ye Yang and Minbo Lu

Vol.48 No.6 (November 2021)
Research Article View: 1,867 Download: 345
Intercalated Zn-Cr-[α-SiW12O40] as Removal Agents of Cobalt (II) in Watery Phase: Adsorption and Regeneration Study
page: 545 - 556

Luna Silaen, Neza Rahayu Palapa, Elfita, Risfidian Mohadi and Aldes Lesbani

Vol.48 No.2 (March 2021)
Research Article View: 1,743 Download: 393
A Novel Polyacrylamide-divinylbenzene Functionalized Fe3O4/Coconut Shell Adsorbent with Superior Capacity for Removal of Acridine Orange
page: 520 - 532

Huan Wang*, Wei Zhao, Youning Chen, Xiaoling Yang and Xiaohua Meng

Vol.48 No.2 (March 2021)
Research Article View: 1,583 Download: 363
A Novel Acrylic Intercalated Hydrotalcite for the Removal of Heavy Metal Ions from Aqueous Solution: Isotherm, Kinetics, Thermodynamics and Mechanism
page: 1055 - 1067

Wei Zhao, Youning Chen and Yuhong Li

Vol.47 No.5 (September 2020)
Research Article View: 1,728 Download: 438
Adhesion Mechanism of Different Alkyltrichlorosilanes Enhanced Superhydrophobicity on Superhydrophilic SiO2 Film Prepared by Dip Coating
page: 823 - 828

Atchara Sriboonruang, Tewasin Kumpika, Ekkapong Kantarak, Wattikon Sroila, Pisith Singjai, Narin Lawan, Sairoong Muangpil and Wiradej Thongsuwan

Vol.47 No.4 (Special Issue II : July 2020)
Research Article View: 1,567 Download: 1,453
Batch Removal of Pb (II) from Aqueous Solution using Activated Carbon Prepared from Mangosteen Shell Activated with H2SO4
page: 554 - 566

Anitha Devasahayam, Ramadevi Abbai Ramanujam and Seetharaman Ramasamy

Vol.47 No.3 (May 2020)
Research Article View: 1,980 Download: 650
Adsorption of 2,4-Dichlorophenoxyacetic acid by Magnesium Ferrite Magnetic Nanoparticles Modified with Amine Functional Groups
page: 137 - 146

Supawitch Hoijang, Jeeranan Nonkumwong, Burapol Singhana, Sunanta Wangkarn, Supon Ananta and Laongnuan Srisombat

Vol.47 No.1 (January 2020)
Research Article View: 1,793 Download: 493
Modified Mangosteen Shell in the Removal of Hg (II) from Aqueous Solution-Isotherm and Kinetic Studies
page: 127 - 136

Anitha Devasahayam, Ramadevi Abbai Ramanujam and Seetharaman Ramasamy

Vol.47 No.1 (January 2020)
Research Article View: 1,745 Download: 1,604
Prospective Sorption Evaluation of Hydrothermally Carbonized Lepironia Articulata (Grey sedge) for the Removal of Ni (II) from Aqueous Solution
page: 2220 - 2231

Asadullah, Lupong Kaewsichan and Kanogwan Tohdee

Vol.45 No.5 (Special 2018)
Research Article View: 1,728 Download: 618
Process Optimization of Biomimetic Calcium Phosphate Coating on 3D Printed Porous Polyethylene by Using Statistical Design of Experiment
page: 2105 - 2122

Faungchat Thammarakcharoen and Jintamai Suwanprateeb

Vol.45 No.5 (Special 2018)
Research Article View: 1,129 Download: 1,034
Achieving Adsorption of Cationic Dyes by the Composites Based on H3PMo12O40 Decorating Metal Organic Frameworks
page: 1486 - 1498

Wenpeng Gong, Xiaogang Du, Xiaoxia Liu, Xiaofen Ke and Shuijin Yang*

Vol.45 No.3 (May 2018)
Research Article View: 1,796 Download: 377
Adsorption of a Highly Toxic Aromatic Pollutant From Aqueous Solution Using Low Cost Activated Carbon: Equilibrium, Kinetic and Thermodynamic Aspects
page: 1471 - 1485

Muhammad Hamayun*, Sonia Sherazi, Shah Zareen, Abdul Naeem, Muhammad Saeed, Khizar Hussain Shah, Ataf Ali Altaf, Shahzad Murtaza and Muhammad Zubair

Vol.45 No.3 (May 2018)
Research Article View: 1,732 Download: 419
Preparation of Eco-friendly and Low-cost Activated Carbon from Gracilaria corticata Seaweeds for the Removal of Crystal Violet Dye from Aqueous Solution: Equilibrium and Modeling Studies
page: 1039 - 1051

Duraipandian Jayganesh, Rengasamy Tamilarasan*, Muthiyan Kumar, Mani Murugavelu and Vadivelu Sivakumar

Vol.45 No.2 (March 2018)
Research Article View: 1,836 Download: 350
Laboratory-based Investigation into the Removal Behaviour of Asphalt in Porous Asphalt Mixture on Zinc Ions from Road Runoff
page: 1601 - 1610

Yao Zhao*, Chen Zhao, Kelly Hill and Xun Qian Xu

Vol.44 No.4 (October 2017)
Research Article View: 1,712 Download: 318
Removal of p-Nitrophenol from Aqueous Solution Using Synthesized Silica-Magnetite Composite
page: 1028 - 1039

Adekola F.A.*, Orimolade B.O.** and Adebayo G.B.

Vol.44 No.3 (July 2017)
Research Article View: 1,766 Download: 418
Evaluation of Treated and Untreated Sludge from Yarn Processing Factory as Adsorbent Candidates for Dye Removal
page: 508 - 517

Muhammad Abbas Ahmad Zaini* [a,b] and Noor Yuhana Jusoh [b]

Vol.44 No.2 (April 2017)
Research Article View: 1,667 Download: 271
Towards the Adsorption of Propylene and Propane on Cu(I)X and Cu(I)Y Zeolites: Effects of Zeolite Preparation
page: 591 - 599

Suwichak Phutthapatimok [a,b], Pattaraporn Sridechparsat [a,b], Pramoch Rangsunvigit* [a,b] and Santi Kulprathipanja [c]

Vol.43 No.3 (APRIL 2016)
Research Article View: 1,802 Download: 350
Validating Adsorptive Capacity of Areca Husk Carbon onto Methylene Blue & ANOVA Modelling
page: 183 - 194

Arumugam Basker[a]*, Syed shabudeen[b], Appavoo Ponnuraju Shekhar[c] and Savarimuthu Daniel[b]

Vol.43 No.1 (JANUARY 2016)
Research Article View: 1,676 Download: 290
Modeling and Optimization of Removal of Rhodamine – B from Wastewaters by Adsorption on Modified Clay
page: 1230 - 1240

Morteza Bahram, Robabeh Talebi, Abdolhossein Naseri* , Sirous Nouri

Vol.41 No.5/2 (OCTOBER 2014)
Research Article View: 1,636 Download: 540
Synthesis and Use of Zeolite Na-A from Waste Sludge of Water Treatment Plant for Ammonium Removal
page: 1262 - 1273

Jeatana Wongwichien [a], Suwimol Asavapisit [a] and Kwannate Sombatsompop* [b]

Vol.41 No.5/2 (OCTOBER 2014)
Research Article View: 1,640 Download: 280
Adsorption Equilibrium of Zinc Ions from Aqueous Solution by Using Modified Clinoptilolite
page: 56 - 62

Achanai Buasri, Phetcharat Yongbut, Nattawut Chaiyut and Kittiya Phattarasirichot

Vol.35 No.1 (JANUARY 2008)
Research Article View: 1,670 Download: 357
Outline
Figures