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Adel S. Abduljabbar
King Saud University
40Publications
15H-index
926Citations
Publications 40
Newest
#1Ismael S. Albursan (KSU: King Saud University)H-Index: 1
Last.Adel S. Abduljabbar (KSU: King Saud University)H-Index: 15
view all 7 authors...
Abstract. Sex differences in mathematical ability were examined in a nation-wide sample of 32,346 Jordanian 4th graders (age 9–10 year) on a 40-item mathematics test. Overall, boys were found to perform slightly worse (d = −0.12) but had slightly more variation in scores (SD = 1.02 and SD = 0.98 for boys and girls, respectively). However, when results were disaggregated by school type, single-sex versus coed (i.e., coeducational), boys were found to perform better than girls in coed schools (d =...
#1Munir Ahmad (KSU: King Saud University)H-Index: 13
#2Mahtab Ahmad (QAU: Quaid-i-Azam University)H-Index: 26
Last.Mohammad I. Al-Wabel (KSU: King Saud University)H-Index: 15
view all 6 authors...
Biochar (BC) was produced from date palm tree leaves and its composites were prepared with nano zerovalent iron (nZVI-BC) and hen eggshell powder (EP-BC). The produced BC and its composites were characterized by SEM, XRD, BET, and FTIR for surface structural, mineralogical, and chemical groups and tested for their efficiency for nitrate removal from aqueous solutions in the presence and absence of chloride ions. The incidence of graphene and nano zerovalent iron (Fe0) in the nZVI-BC composite wa...
#1Munir Ahmad (KSU: King Saud University)H-Index: 13
#2Mahtab Ahmad (KSU: King Saud University)H-Index: 26
Last.Mohammad I. Al-Wabel (KSU: King Saud University)H-Index: 15
view all 8 authors...
ABSTRACTBio-calcite (BC) derived from waste hen eggshell was subjected to thermal treatments (calcined bio-calcite (CBC)). The BC and CBC were further modified via magnesiothermal treatments to produce modified bio-calcite (MBC) and modified calcined bio-calcite (MCBC), respectively, and evaluated as a novel green sorbent for P removal from aqueous solutions in the batch experiments. Modified BC exhibited improved structural and chemical properties, such as porosity, surface area, thermal stabil...
#1Mohammad I. Al-Wabel (KSU: King Saud University)H-Index: 15
#2Qaiser Hussain (KSU: King Saud University)H-Index: 13
Last.Yong Sik Ok (KU: Korea University)H-Index: 50
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This review summarizes the influences of pyrolysis conditions and feedstock types on biochar properties, and how biochar properties in turn affect soil properties. Mechanistic evidence of biochar's potential for enhancing crop productivity, carbon sequestration, and nutrient use efficiency are also discussed. The review identifies the knowledge gaps, limitations, and future research directions for large-scale use of biochar. Both pyrolytic parameters and feedstock types are considered to be the ...
#2Mahtab Ahmad (QAU: Quaid-i-Azam University)H-Index: 26
Last.Adel S. Abduljabbar (KSU: King Saud University)H-Index: 15
view all 11 authors...
Abstract Presence of organic and inorganic acids influences the release rates of trace metals (TMs) bound in contaminated soil systems. This study aimed to investigate the influence of bioenergy waste biochar, derived from Gliricidia sepium (GBC), on the proton and ligand-induced bioavailability of Pb and Cu in a shooting range soil (17,066 mg Pb and 1134 mg Cu per kg soil) in the presence of inorganic (sulfuric, nitric, and hydrochloric) and organic acids (acetic, citric, and oxalic). Release r...
#1Meththika Vithanage (USJP: University of Sri Jayewardenepura)H-Index: 25
#2Tharanga BandaraH-Index: 3
Last.Yong Sik Ok (KU: Korea University)H-Index: 50
view all 7 authors...
ABSTRACTWoody biochars derived by pyrolyzing Gliricidia sepium at 300°C and 500°C and a waste byproduct of same biomass from a bioenergy industry (BC700) were tested for their effect on soil enzymes activities and available form of heavy metals in multi-metals contaminated soil. Pot experiments were conducted during 6 weeks with tomato (Lycopersicon esculentum L.) at biochar application rates, 1, 2.5, and 5% (w/w). A reduction in polyphenol oxidase with biochars produced at increasing pyrolysis ...
#1Munir Ahmad (KSU: King Saud University)H-Index: 13
#2Mahtab Ahmad (QAU: Quaid-i-Azam University)H-Index: 26
Last.Mohammad I. Al-Wabel (KSU: King Saud University)H-Index: 15
view all 7 authors...
Engineered organo-mineral composites were synthesized from date palm waste biochar and silica or zeolite via mechanochemical treatments. Date palm tree rachis (leaves) waste biomass was pre-treated with silica or zeolite minerals via ball milling and sonication prior to pyrolysis at 600 °C. The resultant organo-mineral composites and pristine materials were characterized using X-ray diffraction, thermogravimetric–differential thermal (TG–DTA), Fourier transform infrared, scanning electron micros...
#1Mohammad I. Al-Wabel (KSU: King Saud University)H-Index: 15
#2Adel R.A. Usman (KSU: King Saud University)H-Index: 24
Last.Abdelazeem Sh. Sallam (KSU: King Saud University)H-Index: 4
view all 7 authors...
A 30-day incubation experiment was conducted using a heavy metal-contaminated mined soil amended with date palm feedstock (FS) and its derivative biochars (BCs) at three pyrolysis temperatures of 300 (BC-300), 500 (BC-500), and 700 °C (BC-700) with different application rates (0.0, 5, 15, and 30 g kg−1) to investigate their short-term effects on soil respiration (CO2–C efflux), microbial biomass carbon (MBC), soil organic carbon (SOC), mobile fraction of heavy metals (Cd, Cu, Pb, Zn, Mn, and Fe)...
#1Salaheldin Farah Attallah Bakhiet (KSU: King Saud University)H-Index: 5
#2Ismael S. Albursan (KSU: King Saud University)H-Index: 1
Last.Richard Lynn (Ulster University)H-Index: 41
view all 7 authors...
#1Munir Ahmad (KSU: King Saud University)H-Index: 13
#2Mahtab Ahmad (KSU: King Saud University)H-Index: 26
Last.Mohammad I. Al-Wabel (KSU: King Saud University)H-Index: 15
view all 9 authors...
Abstract In most arid and semiarid soils, naturally occurring phosphorus (P) is a major yield-limiting plant nutrient. In this study, to investigate the effects of organic (OP) and inorganic P (IP) sources on P fractionation, a calcareous sandy loam alkaline soil was fertilized with OP and IP fertilizers at low (80 mg P kg −1 soil) and high (160 mg P kg −1 soil) application rates. Three combinations of OP and IP ( i.e. , 75% OP + 25% IP, 50% OP + 50% IP, and 25% OP + 75% IP) were applied at low ...
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