Work

Methylene Blue Adsorption onto NaOH Modified Durian Leaf Powder: Isotherm and Kinetic Studies

Year: 2015

Type: article

Abstract: Durian leaf powder was treated with NaOH to introduce more carboxylate (-COO - ) groups in order to improve its performance as an adsorbent. The interaction between chemically treated durian leaf powder (CTDLP) and methylene blue (MB) was examined by using a Fourier Transform Infrared (FTIR) spectrometer. Surface modification of CTDLP was examined by using a Scanning Electron Microscope (SEM). Batch adsorption study was applied to investigate the effects of contact time, initial dye concentration, adsorbent dosage and pH of dye solution on MB adsorption. The experimental data best fitted with Langmuir model (R 2 > 0.989) with a maximum monolayer adsorption capacity of 125 mg g −1 . The kinetic studies showed good correlation with pseudo-second-order model, suggesting that the MB adsorption involved chemisorption process. This study revealed CDTLP as a potential adsorbent for MB removal from wastewater.

Source: American journal of environmental engineering

Authors: Zurhana Mat Hussin, Norziyanti Talib, Noraini Mat Hussin, Megat Ahmad Kamal Megat Hanafiah, Wan K. A. W. M. Khalir

Institutions: Universiti Teknologi MARA System, Universiti Teknologi MARA

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: diamond

OpenAlex ID: W1166479902

FWCI: 1.987

Cites: 25

Cited by: 27

Related to: 10