scholarly journals Improvement of dispersibility and film formability of TiO2 nanoparticles by surfactant modification

2019 ◽  
Vol 31 (0) ◽  
pp. n/a
Author(s):  
Mizuki KUNIYOSHI ◽  
Ryotaro KARUBE ◽  
Yuki NAKAGAWA ◽  
Md. SHAHIDUZZAMAN ◽  
Koji TOMITA ◽  
...  
Keyword(s):  
Surfactant Modification

On the investigation of acid and surfactant modification of natural clay for photocatalytic water remediation

2018 ◽  
Vol 53 (14) ◽  
pp. 10095-10110 ◽  
Author(s):  
Vineet Kumar Soni ◽  
Toran Roy ◽  
Suman Dhara ◽  
Ganpat Choudhary ◽  
Pragati R. Sharma ◽  
...  
Keyword(s):  
Water Remediation ◽  
Natural Clay ◽  
Surfactant Modification

Improved synthesis of alumina-pillared montmorillonite by surfactant modification

1992 ◽  
Vol 4 (6) ◽  
pp. 1433-1437 ◽  
Author(s):  
Laurent J. Michot ◽  
Thomas J. Pinnavaia
Keyword(s):  
Pillared Montmorillonite ◽  
Surfactant Modification

scholarly journals Removal of Carbamazepine onto Modified Zeolitic Tuff in Different Water Matrices: Batch and Continuous Flow Experiments

Water ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1084
Author(s):  
Othman A. Al-Mashaqbeh ◽  
Diya A. Alsafadi ◽  
Layal Z. Alsalhi ◽  
Shannon L. Bartelt-Hunt ◽  
Daniel D. Snow
Keyword(s):  
Wastewater Treatment ◽  
Sorption Capacity ◽  
Pure Water ◽  
Treatment Plant ◽  
Hexadecyltrimethylammonium Bromide ◽  
Ultrapure Water ◽  
Zeolitic Tuff ◽  
X Ray ◽  
Wwtp Effluent ◽  
Surfactant Modification

Carbamazepine (CBZ) is the most frequently detected pharmaceutical residues in aquatic environments effluent by wastewater treatment plants. Batch and column experiments were conducted to evaluate the removal of CBZ from ultra-pure water and wastewater treatment plant (WWTP) effluent using raw zeolitic tuff (RZT) and surfactant modified zeolite (SMZ). Point zero net charge (pHpzc), X-ray diffraction (XRD), X-ray fluorescence (XRF), and Fourier Transform Infrared (FTIR) were investigated for adsorbents to evaluate the physiochemical changes resulted from the modification process using Hexadecyltrimethylammonium bromide (HDTMA-Br). XRD and FTIR showed that the surfactant modification of RZT has created an amorphous surface with new alkyl groups on the surface. The pHpzc was determined to be approximately 7.9 for RZT and SMZ. The results indicated that the CBZ uptake by SMZ is higher than RZT in all sorption tests (>8 fold). Batch results showed that the sorption capacity of RZT and SMZ in WWTP effluent (0.029 and 0.25 mg/g) is higher than RZT and SMZ (0.018 and 0.14 mg/g) in ultrapure water (1.6–1.8 fold). Batch tests showed that the equilibrium time of CBZ removal in the WWTP matrix (47 h) is much longer than CBZ removal in ultrapure water. The sorption capacity of RZT & SMZ in WWTP effluent (0.03, 0.33 mg/g) is higher than RZT and SMZ (0.02 and 0.17 mg/g) in ultrapure water (1.5–2 fold) using column test. This study has clearly demonstrated that the performance of RZT and SMZ is more efficient for the removal of CBZ from realistic wastewater than ultrapure water. It is evident that the surfactant modification of RZT has enhanced the CBZ removal in both matrices.

Surfactant modification of lipases for lipid interesterification and hydrolysis reactions

1999 ◽  
Vol 76 (11) ◽  
pp. 1259 ◽  
Author(s):  
Ken-ichi Mogi ◽  
Mitsutoshi Nakajima ◽  
Sukekuni Mukataka
Keyword(s):  
Surfactant Modification ◽  
Hydrolysis Reactions

Surfactant modification of aggregation-induced emission material as biocompatible nanoparticles: Facile preparation and cell imaging

Nanoscale ◽  
2013 ◽  
Vol 5 (1) ◽  
pp. 147-150 ◽  
Author(s):  
Xiqi Zhang ◽  
Xiaoyong Zhang ◽  
Shiqi Wang ◽  
Meiying Liu ◽  
Lei Tao ◽  
...  
Keyword(s):  
Cell Imaging ◽  
Aggregation Induced Emission ◽  
Biocompatible Nanoparticles ◽  
Surfactant Modification ◽  
Facile Preparation
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