Ahmad Kueh

Dr. Ahmad Kueh

Universiti Malaysia Sarawak, Kuching, Sarawak, Malaysia
orcid

Research Focus & Metrics

Academic Career Length

22Years (2005-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 June 2017 in Journal of the Chinese Chemical Society
Verified
Journal Article
Closed access
PDF file
ASAchmad Syafiuddin
Achmad Syafiuddin
SASalmiati
Salmiati
MSMohd Razman Salim
Mohd Razman Salim
Ahmad KuehAhmad Kueh
Ahmad Kueh
Tony HadibarataTony Hadibarata
Tony Hadibarata
HNHadi Nur
Hadi Nur

1 February 2015 in Cement and Concrete Composites
Verified
Journal Article
Closed access
MMM.E. Mohamad
M.E. Mohamad
III.S. Ibrahim
I.S. Ibrahim
RAR. Abdullah
R. Abdullah
ARA.B. Abd. Rahman
A.B. Abd. Rahman
Ahmad KuehAhmad Kueh
Ahmad Kueh
JUJ. Usman
J. Usman

17 January 2018 in Scientific Reports
Verified
Journal Article
Open access
PDF file
ASAchmad Syafiuddin
Achmad Syafiuddin
Salmiati SalmiatiSalmiati Salmiati
Salmiati Salmiati
Tony HadibarataTony Hadibarata
Tony Hadibarata
Ahmad KuehAhmad Kueh
Ahmad Kueh
MSMohd Razman Salim
Mohd Razman Salim
MZMuhammad Abbas Ahmad Zaini
Muhammad Abbas Ahmad Zaini
The current status of silver nanoparticles (AgNPs) in the water environment in Malaysia was examined and reported. For inspection, two rivers and two sewage treatment plants (STPs) were selected. Two activated carbons derived from oil palm (ACfOPS) and coconut (ACfCS) shells were proposed as the adsorbent to remove AgNPs. It was found that the concentrations of AgNPs in the rivers and STPs are in the ranges of 0.13 to 10.16 mg L−1 and 0.13 to 20.02 mg L−1, respectively, with the highest concentration measured in July. ACfOPS and ACfCS removed up to 99.6 and 99.9% of AgNPs, respectively, from the water. The interaction mechanism between AgNPs and the activated carbon surface employed in this work was mainly the electrostatic force interaction via binding Ag+ with O− presented in the activated carbon to form AgO. Fifteen kinetic models were compared statistically to describe the removal of AgNPs. It was found that the experimental adsorption data can be best described using the mixed 1,2-order model. Therefore, this model has the potential to be a candidate for a general model to describe AgNPs adsorption using numerous materials, its validation of which has been confirmed with other material data from previous works.

1 September 2016 in Construction and Building Materials
Verified
Journal Article
Closed access
MSM. Shariati
M. Shariati
NSN.H. Ramli Sulong
N.H. Ramli Sulong
ASA. Shariati
A. Shariati
Ahmad KuehAhmad Kueh
Ahmad Kueh

1 August 2019 in Construction and Building Materials
Verified
Journal Article
Closed access
MRMuhammad Khairi Azri Roslan
Muhammad Khairi Azri Roslan
MIMohammad Ismail
Mohammad Ismail
Ahmad KuehAhmad Kueh
Ahmad Kueh
MZMuhammad Rawi Mohamed Zin
Muhammad Rawi Mohamed Zin

1 September 2017 in Composites Science and Technology
Verified
Journal Article
Closed access
SSS.H. Abo Sabah
S.H. Abo Sabah
Ahmad KuehAhmad Kueh
Ahmad Kueh
MAMohammed Alfasih
Mohammed Alfasih