A5051893527- Concrete and Cement Materials Research
- Catalytic Processes in Materials Science
- Innovative concrete reinforcement materials
- Adsorption and biosorption for pollutant removal
- Nanomaterials for catalytic reactions
- Catalysis and Oxidation Reactions
- Magnesium Oxide Properties and Applications
- Recycled Aggregate Concrete Performance
- Recycling and utilization of industrial and municipal waste in materials production
- Building materials and conservation
- Catalysis and Hydrodesulfurization Studies
- Supercapacitor Materials and Fabrication
- Gas Sensing Nanomaterials and Sensors
- Concrete Properties and Behavior
- Natural Products and Applications
- Electrocatalysts for Energy Conversion
- Vitamin C and Antioxidants Research
- Heavy Metal Pollution Remediation
- Electrochemical sensors and biosensors
- Advanced Nanomaterials in Catalysis
- Catalysis for Biomass Conversion
- Graphene and Nanomaterials Applications
- Membrane Separation Technologies
- Advanced biosensing and bioanalysis techniques
- Membrane-based Ion Separation Techniques
Universiti Malaysia Sarawak
2012-2024
University of Sheffield
2016-2024
Universiti Putra Malaysia
2015-2016
The study examines the effect of chamber size, Microbial Fuel Cell (MFC) arrangement, environmental conditions on voltage production, and influence connecting Power Management System (PMS) with MFC. A 6-unit single-chamber MFC device was built using soil as a catalyst coconut leaves substrate. It then connected to PMS. showed that 350 ml unit arranged in series produced greater 457 mV compared 700 container. smaller integrated PMS consisting charge pump, DC-DC boost converter, Maximum Point...
A predictive model correlating the properties of a catalyst with its performance would be beneficial for development, from biomass waste, new, carbon-supported and Earth-abundant metal oxide catalysts. In this work, effects copper iron crystallite size on catalysts in reducing nitrogen oxides, terms conversion selectivity, are investigated. The prepared via incipient wetness method over activated carbon, derived palm kernel shells. surface morphology particle distribution examined field...
Abstract With the development of society, pollution accidents occur more frequently, and effects toxic substances containing silver on human health environment are increasingly extensive. Therefore, real-time on-site monitoring ions is urgently needed. Based catalase-like properties graphene/nano-platinum composites coupling effect between Pt Ag + , a simple, unlabeled colorimetric sensing method proposed to achieve quantitative detection . Under optimal conditions, range by this 0.5–1000...
This paper investigates the formation of Calcium Silicate Hydrate (C-S-H) as a product ofpozzolanic reactions in cement paste with partially replaced crushed recycled glass at therate 10% and 20%. Three different particle sizes for used this study were therange 150-75μm, 75-38μm lower than 38μm; water to ratio 0.45 was allspecimens. showed that Hydroxide Ca(OH)2 is decreased while theformation C-S-H increased simultaneously 90 days <38μm powder. Theuse waste partial replacement improves...
There are environmental and sustainable benefits of partially replacing cement with industrial by‐products or synthetic materials in based products. Since microstructural behaviours products the crucial parameters that govern their sustainability durability, this study investigates comparison between two different types replacements as nanopozzolan modified (NPMC) product by focusing on evidence pozzolanic reactivity corroboration physical mechanical properties. Characterization morphology...
This study intends to investigate the early pozzolanic reaction of Nanosilica (nS) modified cement paste (NMCP) by characterization technique Calcium Hydroxide (CH) and Silicate Hydrate (C-S-H ) using Fourier Transform Infrared Spectroscopy (FT-IR). NMCP samples were prepared with water-binder ratio 0.50. nS 5-15nm particle size used as 1%, 3% ,5% ,7% 10% replacement weight. All cured in concrete laboratory at daily room temperature (T) relative humidity (RH) range 18-28oC 65-90%,...
This paper discusses the extraction of an antioxidant compound, which is ascorbic acid or vitamin C, from a banana peel using ultrasound-assisted (UAE) method. The type used was Musa acuminata also known as “PisangKepok†in Malaysia. investigation includes effect solvent/solid ratio (4.5, 5 g and 10  ml/g), sonication time (15, 30 45 mins) temperature variation (30 , 45 60oC ) on compounds to determine best optimum condition operation. Out all extract samples analyzed by redox...
Hexavalent chromium is carcinogenic and should be removed from industrial wastewater before discharged into water resources. Adsorption by using activated carbon biomass an economic conventional way on removing the heavy metal ions wastewater. In this research, synthesized Jatropha curcas L. seed hull through chemical activation with ZnCl2 carbonized at 800 °C (JAC/ZnCl2). The has been characterized FTIR, SEM-EDX, BET CHNS-O analyzer. isotherms have analysed Langmuir Freundlich models to...
A greater portion of nonrecyclable waste glass is accumulated on landfills creating a serious environmental problem. Recent studies have been carried out to utilize the in construction as partial replacement cement. This paper investigates fineness properties four sizes particles and strength characteristics mortar which cement partially replaced with powder level 10%, 20%, 30% 40%. Mortar cubes containing varying particle ranges 212 μm, 75 63-38 μm lower than 38 water ratio 0f 0.50 0.45...
<abstract> Serious water pollution due to climate change as the consequences of non-ecological wastewater treatment and unsustainable agricultural activities had emerged scarcity problem. The utilization oil palm biomass into cadmium adsorbent could play a role in killing two birds with one stone, which is solve disposal issue issue. modifications discussed this review focused on furnace heating microwave well combined methods chemical activating agents. Among modification methods, output...
The characteristics of catalysts impregnated in coconut shell (CS) and palm kernel (PKS) activated carbon were determined as potential precursors used a flue gas denitrification system at low temperature. In this study, Manganese (Mn) Copper (Cu) with metal loading 8% the (AC) before undergoing temperature calcination process. morphological properties samples was analysed using Scanning Electron Microscopy (SEM) Brunauer, Emmett Teller (BET) to determine surface area pore size samples....
This work studied on the kinetics of Vitamin C extraction from banana peel at different solvent/solid concentration and temperature. Musa Acuminata was ground into smaller sizes before contacted with methanol as a solvent in an ultrasonic bath. To study effect ratio, 4.5, 5.0 10.0 ml/g ratio were used for fixed Then, temperature varied heating element available bath 30, 45 60 °C, to kinetics. It found that high (10 ml/g) provides more solute-solvent contact prevents extracted coming air....
This study focuses on the effectiveness of pozzolanic industrial by-products namely Fly Ash Class F (FA) and Silica Fume (SF) as partial cement replacements in reducing efflorescence surface Ordinary Portland Cement (OPC) mortar. The early hydration behaviour Pozzolanic Modified Mortar (PMM) that hypothetically affects has been investigated physically using Puddle Test (PT), Standard Chemical Method (SCM), Electrical Conductivity (ECT); mechanically Compressive Strength (CS); morphologically...